format-version: 1.2 date: 02:04:2012 12:19 saved-by: billiau auto-generated-by: The OWL API (version 3.2.3.1824) id_space: rdfs http://www.w3.org/2000/01/rdf-schema# id_space: owl http://www.w3.org/2002/07/owl# id_space: xeo http://xeo.codeplex.com/xeo.owl# id_space: xsd http://www.w3.org/2001/XMLSchema# id_space: rdf http://www.w3.org/1999/02/22-rdf-syntax-ns# ! ---------------------- CLASSES ------------------------- [Term] id: XEO:00001 name: EnvironmentVariable relationship: has_context XEO:00015 relationship: has_context XEO:00014 [Term] id: XEO:00002 name: Context [Term] id: XEO:00003 name: Aerial is_a: XEO:00001 [Term] id: XEO:00004 name: Substrate is_a: XEO:00001 [Term] id: XEO:00005 name: QuantityContext is_a: XEO:00002 [Term] id: XEO:00006 name: Temperature is_a: XEO:00004 relationship: has_context XEO:00008 [Term] id: XEO:00007 name: Temperature is_a: XEO:00003 relationship: has_context XEO:00008 def: "Defines the air temperature" [Term] id: XEO:00008 name: Quantity comment: TemperatureContext is_a: XEO:00005 relationship: has_datatype XEO:00237 [Term] id: XEO:00014 name: FreeText is_a: XEO:00002 relationship: has_datatype XEO:00238 [Term] id: XEO:00015 name: ResponseRange is_a: XEO:00002 relationship: has_datatype XEO:00237 relationship: has_enum XEO:00171 [Term] id: XEO:00016 name: AirMoisture is_a: XEO:00003 [Term] id: XEO:00017 name: AirMovements is_a: XEO:00003 [Term] id: XEO:00018 name: Gases is_a: XEO:00003 [Term] id: XEO:00019 name: Radiation is_a: XEO:00003 [Term] id: XEO:00020 name: RelativeHumidity is_a: XEO:00016 relationship: has_context XEO:00139 def: "Describes the amount of water vapor in the air, generally expressed as the percentage of the maximum water vapor" [Term] id: XEO:00021 name: VapourPressureDeficit is_a: XEO:00016 relationship: has_context XEO:00141 def: "Defines the difference between the maximal amount of water in the air minus the actual amount" [Term] id: XEO:00022 name: AirVelocity is_a: XEO:00017 relationship: has_context XEO:00149 def: "Defines the velocity of the wind" [Term] id: XEO:00023 name: CarbonDioxide is_a: XEO:00018 relationship: has_context XEO:00127 def: "Defines the concentration of CO2 in the air" [Term] id: XEO:00024 name: Nitrogen def: "Defines the concentration of N2 in the air" is_a: XEO:00018 relationship: has_context XEO:00127 [Term] id: XEO:00025 name: Oxygen is_a: XEO:00018 relationship: has_context XEO:00127 def: "Defines the concentration of O2 in the air" [Term] id: XEO:00026 name: Pollutants is_a: XEO:00018 [Term] id: XEO:00027 name: NOX is_a: XEO:00026 relationship: has_context XEO:00127 def: "Defines the concentration of NOX in the air" [Term] id: XEO:00028 name: Ozone is_a: XEO:00026 relationship: has_context XEO:00127 def: "Defines the concentration of O3 in the air" [Term] id: XEO:00029 name: SO2 is_a: XEO:00026 relationship: has_context XEO:00127 def: "Defines the concentration of SO2 in the air" [Term] id: XEO:00030 name: LightIntensity is_a: XEO:00019 [Term] id: XEO:00031 name: LightQuality is_a: XEO:00019 [Term] id: XEO:00032 name: UV is_a: XEO:00019 [Term] id: XEO:00033 name: PAR Light is_a: XEO:00030 relationship: has_context XEO:00135 def: "Defines the intensity of photosynthetically active light" [Term] id: XEO:00034 name: Total Light is_a: XEO:00030 relationship: has_context XEO:00135 def: "Defines the intensity of total light" [Term] id: XEO:00035 name: BlueToTotal is_a: XEO:00031 relationship: has_context XEO:00152 def: "Defines the blue light to total light ratio" [Term] id: XEO:00036 name: RedToFarRed is_a: XEO:00031 relationship: has_context XEO:00152 def: "Defines the red light to far red light ratio" [Term] id: XEO:00037 name: UVA is_a: XEO:00032 relationship: has_context XEO:00135 def: "Defines the intensity of UVA radiation (320-400 nm)" [Term] id: XEO:00038 name: UVB is_a: XEO:00032 relationship: has_context XEO:00135 def: "Defines the intensity of UVB radiation (290-320 nm)" [Term] id: XEO:00039 name: UVC is_a: XEO:00032 relationship: has_context XEO:00135 def: "Defines the intensity of UVB radiation (less tha 280 nm)" [Term] id: XEO:00040 name: Container is_a: XEO:00004 relationship: has_enum XEO:00212 def: "Defines the type of container used to grow/treat the plants (e.g. pot, Petri dish, well, tray, etc.)" [Term] id: XEO:00041 name: Sterility is_a: XEO:00004 relationship: has_enum XEO:00232 def: "Indicates whether the substrate has been sterilised" [Term] id: XEO:00042 name: Nutrients is_a: XEO:00004 [Term] id: XEO:00043 name: Oxygen is_a: XEO:00004 [Term] id: XEO:00044 name: pH is_a: XEO:00004 [Term] id: XEO:00045 name: Planting is_a: XEO:00004 [Term] id: XEO:00046 name: Properties is_a: XEO:00004 [Term] id: XEO:00047 name: Salt is_a: XEO:00004 [Term] id: XEO:00048 name: Water is_a: XEO:00004 [Term] id: XEO:00049 name: Macronutrients is_a: XEO:00042 [Term] id: XEO:00050 name: Micronutrients is_a: XEO:00042 [Term] id: XEO:00051 name: Calcium is_a: XEO:00049 [Term] id: XEO:00052 name: Carbon is_a: XEO:00049 [Term] id: XEO:00053 name: Magnesium is_a: XEO:00049 [Term] id: XEO:00054 name: Nitrogen is_a: XEO:00049 [Term] id: XEO:00055 name: Phosphor is_a: XEO:00049 [Term] id: XEO:00056 name: Potassium is_a: XEO:00049 [Term] id: XEO:00057 name: Sulfur is_a: XEO:00049 [Term] id: XEO:00058 name: Ca is_a: XEO:00051 relationship: has_context XEO:00127 def: "Defines the concentration of total calcium" [Term] id: XEO:00059 name: Ca2+ is_a: XEO:00051 relationship: has_context XEO:00127 def: "Defines the concentration of free calcium" [Term] id: XEO:00060 name: C is_a: XEO:00052 relationship: has_context XEO:00127 def: "Defines the concentration of total carbon within the substrate" [Term] id: XEO:00061 name: Fructose is_a: XEO:00052 relationship: has_context XEO:00127 def: "Defines the concentration of fructose within the substrate" [Term] id: XEO:00062 name: Glucose is_a: XEO:00052 relationship: has_context XEO:00127 def: "Defines the concentration of glucose within the substrate" [Term] id: XEO:00063 name: Sucrose is_a: XEO:00052 relationship: has_context XEO:00127 def: "Defines the concentration of sucrose within the substrate" [Term] id: XEO:00064 name: Mg is_a: XEO:00053 relationship: has_context XEO:00127 def: "Defines the concentration of total magnesium" [Term] id: XEO:00065 name: Mg2+ is_a: XEO:00053 relationship: has_context XEO:00127 def: "Defines the concentration of free magnesium" [Term] id: XEO:00066 name: Glutamine is_a: XEO:00054 relationship: has_context XEO:00127 def: "Defines the concentration of glutamine" [Term] id: XEO:00067 name: N is_a: XEO:00054 relationship: has_context XEO:00127 def: "Defines the concentration of total nitrogen" [Term] id: XEO:00068 name: NH4+ is_a: XEO:00054 relationship: has_context XEO:00127 def: "Defines the concentration of ammonium" [Term] id: XEO:00069 name: NO3- is_a: XEO:00054 relationship: has_context XEO:00127 def: "Defines the concentration of nitrate" [Term] id: XEO:00070 name: Urea is_a: XEO:00054 relationship: has_context XEO:00127 def: "Defines the concentration of urea" [Term] id: XEO:00071 name: (PO4)2- is_a: XEO:00055 relationship: has_context XEO:00127 def: "Defines the concentration of inorganic free phosphate" [Term] id: XEO:00072 name: P is_a: XEO:00055 relationship: has_context XEO:00127 def: "Defines the concentration of total phosphor" [Term] id: XEO:00073 name: K is_a: XEO:00056 relationship: has_context XEO:00127 def: "Defines the concentration of total potassium" [Term] id: XEO:00074 name: K+ is_a: XEO:00056 relationship: has_context XEO:00127 def: "Defines the concentration of free potassium" [Term] id: XEO:00075 name: (SO4)2- is_a: XEO:00057 relationship: has_context XEO:00127 def: "Defines the concentration of free sulfate" [Term] id: XEO:00076 name: S is_a: XEO:00057 relationship: has_context XEO:00127 def: "Defines the concentration of total sulfur" [Term] id: XEO:00077 name: Boron is_a: XEO:00050 [Term] id: XEO:00078 name: Chlorine is_a: XEO:00050 [Term] id: XEO:00079 name: Cobalt is_a: XEO:00050 [Term] id: XEO:00080 name: Copper is_a: XEO:00050 [Term] id: XEO:00081 name: Iron is_a: XEO:00050 [Term] id: XEO:00082 name: Manganese is_a: XEO:00050 [Term] id: XEO:00083 name: Molybdenum is_a: XEO:00050 [Term] id: XEO:00084 name: Nickel is_a: XEO:00050 [Term] id: XEO:00085 name: Silicon is_a: XEO:00050 [Term] id: XEO:00086 name: Sodium is_a: XEO:00050 [Term] id: XEO:00087 name: Zinc is_a: XEO:00050 [Term] id: XEO:00088 name: (BO3)3- is_a: XEO:00077 relationship: has_context XEO:00127 def: "Defines the concentration of borate" [Term] id: XEO:00089 name: B is_a: XEO:00077 relationship: has_context XEO:00127 def: "Defines the concentration of total boron" [Term] id: XEO:00090 name: Cl is_a: XEO:00078 relationship: has_context XEO:00127 def: "Defines the concentration of total chlorine" [Term] id: XEO:00091 name: Cl- is_a: XEO:00078 relationship: has_context XEO:00127 def: "Defines the concentration of chloride" [Term] id: XEO:00092 name: Co is_a: XEO:00079 relationship: has_context XEO:00127 def: "Defines the concentration of total cobalt" [Term] id: XEO:00093 name: Co2+ is_a: XEO:00079 relationship: has_context XEO:00127 def: "Defines the concentration of free cobalt" [Term] id: XEO:00094 name: Cu is_a: XEO:00080 relationship: has_context XEO:00127 def: "Defines the concentration of total copper" [Term] id: XEO:00095 name: Cu2+ is_a: XEO:00080 relationship: has_context XEO:00127 def: "Defines the concentration of free copper" [Term] id: XEO:00096 name: Fe is_a: XEO:00081 relationship: has_context XEO:00127 def: "Defines the concentration of of total iron" [Term] id: XEO:00097 name: Fe2+ is_a: XEO:00081 relationship: has_context XEO:00127 def: "Defines the concentration of of ferride" [Term] id: XEO:00098 name: Fe3+ is_a: XEO:00081 relationship: has_context XEO:00127 def: "Defines the concentration of of ferride" [Term] id: XEO:00099 name: Mn is_a: XEO:00082 relationship: has_context XEO:00127 def: "Defines the concentration of total manganese" [Term] id: XEO:00100 name: Mn2+ is_a: XEO:00082 relationship: has_context XEO:00127 def: "Defines the concentration of free manganese" [Term] id: XEO:00101 name: (MoO4)2- is_a: XEO:00083 relationship: has_context XEO:00127 def: "Defines the concentration of molybdate" [Term] id: XEO:00102 name: Mo is_a: XEO:00083 relationship: has_context XEO:00127 def: "Defines the concentration of total molybdenum" [Term] id: XEO:00103 name: Ni is_a: XEO:00084 relationship: has_context XEO:00127 def: "Defines the concentration of total nickel" [Term] id: XEO:00104 name: Ni2+ is_a: XEO:00084 relationship: has_context XEO:00127 def: "Defines the concentration of nickel" [Term] id: XEO:00105 name: Si is_a: XEO:00085 relationship: has_context XEO:00127 def: "Defines the concentration of total silicon" [Term] id: XEO:00106 name: Na is_a: XEO:00086 relationship: has_context XEO:00127 def: "Defines the concentration of total sodium" [Term] id: XEO:00107 name: Na+ is_a: XEO:00086 relationship: has_context XEO:00127 def: "Defines the concentration of free sodium" [Term] id: XEO:00108 name: Zn is_a: XEO:00087 relationship: has_context XEO:00127 def: "Defines the concentration of total zinc" [Term] id: XEO:00109 name: Zn2+ is_a: XEO:00087 relationship: has_context XEO:00127 def: "Defines the concentration of free zinc" [Term] id: XEO:00110 name: Oxygen is_a: XEO:00043 relationship: has_context XEO:00127 def: "Defines the concentration of O2 in the substrate" [Term] id: XEO:00111 name: pH is_a: XEO:00044 relationship: has_context XEO:00133 def: "Defines the chemical activity of the protons in the substrate, i.e. the acidity or the alkalinity of the substrate; pH = -Log10a[H+] with a, the activity of water" [Term] id: XEO:00112 name: Plants/Container is_a: XEO:00045 relationship: has_context XEO:00152 def: "Defines the number of plants per container (e.g. pot, Petri dish, well, tray, etc.)" [Term] id: XEO:00113 name: RootingVolume is_a: XEO:00045 relationship: has_context XEO:00153 def: "Defines the volume that is available to the roots" [Term] id: XEO:00114 name: ECa is_a: XEO:00046 relationship: has_context XEO:00156 def: "Defines the apparent soil electrical conductivity" [Term] id: XEO:00115 name: ECw is_a: XEO:00046 relationship: has_context XEO:00156 def: "Defines the electrical conductivity of the soil water" [Term] id: XEO:00116 name: Granulometry is_a: XEO:00046 relationship: has_context XEO:00152 def: "Describes the soil texture according to the size of soil particles" [Term] id: XEO:00117 name: OrganicMatter is_a: XEO:00046 def: "Defines the proportion of organic matter in the soil" [Term] id: XEO:00118 name: SubstrateDryWeight is_a: XEO:00046 relationship: has_context XEO:00159 def: "Defines the amount of dry matter within the substrate" [Term] id: XEO:00119 name: SubstrateMaxWeight is_a: XEO:00046 relationship: has_context XEO:00159 def: "Defines the weight of the substrate at field capacity" [Term] id: XEO:00120 name: Salt is_a: XEO:00047 relationship: has_context XEO:00127 def: "Defines the concentration of NaCl" [Term] id: XEO:00121 name: TotalSalt is_a: XEO:00047 relationship: has_context XEO:00127 def: "Defines the concentration of total salt" [Term] id: XEO:00122 name: Flooding is_a: XEO:00048 relationship: has_context XEO:00168 def: "Defines the level of submerging water" [Term] id: XEO:00123 name: RelativeWaterContent is_a: XEO:00048 relationship: has_context XEO:00139 def: "Defines the amount of soil water, expressed as a proportion of the water holding capacity of the soil" [Term] id: XEO:00124 name: Watering is_a: XEO:00048 relationship: has_context XEO:00153 def: "Indicates the volume of supplied water" [Term] id: XEO:00125 name: Waterlogging is_a: XEO:00048 relationship: has_context XEO:00168 def: "Defines the position of the water table" [Term] id: XEO:00126 name: WaterPotential is_a: XEO:00048 relationship: has_context XEO:00141 def: "Defines the potential energy of water per unit mass of water in the soil" [Term] id: XEO:00127 name: Quantity comment: ConcentrationContext is_a: XEO:00005 relationship: has_datatype XEO:00237 [Term] id: XEO:00133 name: Quantity comment: pHContext is_a: XEO:00005 relationship: has_datatype XEO:00237 [Term] id: XEO:00135 name: Quantity comment: LightIntensityContext is_a: XEO:00005 relationship: has_datatype XEO:00237 [Term] id: XEO:00137 name: Source is_a: XEO:00019 relationship: has_enum XEO:00189 def: "Defines the nature of the light source" [Term] id: XEO:00139 name: Quantity comment: PercentageContext is_a: XEO:00005 relationship: has_datatype XEO:00237 [Term] id: XEO:00141 name: Quantity comment: PressureContext is_a: XEO:00005 relationship: has_datatype XEO:00237 [Term] id: XEO:00149 name: Quantity comment: VelocityContext is_a: XEO:00005 relationship: has_datatype XEO:00237 [Term] id: XEO:00151 name: Type is_a: XEO:00004 relationship: has_enum XEO:00197 def: "Defines the nature of the substrate" [Term] id: XEO:00152 name: Quantity comment: RatioContext is_a: XEO:00005 relationship: has_datatype XEO:00237 [Term] id: XEO:00153 name: Quantity comment: VolumeContext is_a: XEO:00005 relationship: has_datatype XEO:00237 [Term] id: XEO:00156 name: Quantity comment: ElectricalConductivity is_a: XEO:00005 relationship: has_datatype XEO:00237 [Term] id: XEO:00159 name: Quantity comment: DensityContext is_a: XEO:00005 relationship: has_datatype XEO:00237 [Term] id: XEO:00168 name: Quantity comment: DistanceContext is_a: XEO:00005 relationship: has_datatype XEO:00237 [Term] id: XEO:00171 name: ResponseRangeEnum is_a: XEO:00237 [Term] id: XEO:00189 name: LightSourceEnum is_a: XEO:00238 [Term] id: XEO:00197 name: SubstrateTypeEnum is_a: XEO:00238 [Term] id: XEO:00212 name: ContainerEnum is_a: XEO:00238 [Term] id: XEO:00232 name: BoolEnum is_a: XEO:00240 [Term] id: XEO:00236 name: DataTypes [Term] id: XEO:00237 name: Number is_a: XEO:00236 [Term] id: XEO:00238 name: Text is_a: XEO:00236 [Term] id: XEO:00239 name: Date is_a: XEO:00236 [Term] id: XEO:00240 name: Bool is_a: XEO:00236 ! ---------------------- PROPERTIES ------------------------- [Typedef] id: has_context domain: XEO:00001 range: XEO:00002 is_metadata_tag: false [Typedef] id: has_datatype domain: XEO:00002 range: XEO:00236 is_metadata_tag: false [Typedef] id: has_enum is_metadata_tag: false [Typedef] id: has_symbol domain: XEO:00005 range: http://www.w3.org/2001/XMLSchema#string is_metadata_tag: false ! ---------------------- INSTANCES ------------------------- [Instance] id: XEO:00011 name: Celsius instance_of: XEO:00008 property_value: has_symbol "°C" [Instance] id: XEO:00012 name: Fahrenheit instance_of: XEO:00008 property_value: has_symbol "°F" [Instance] id: XEO:00013 name: Kelvin instance_of: XEO:00008 property_value: has_symbol "K" [Instance] id: XEO:00128 name: moles per liter instance_of: XEO:00127 property_value: has_symbol "mol/l" [Instance] id: XEO:00129 name: millimol per liter instance_of: XEO:00127 property_value: has_symbol "mM" [Instance] id: XEO:00130 name: micromole per liter instance_of: XEO:00127 property_value: has_symbol "µM" [Instance] id: XEO:00131 name: moles per gram dry weight instance_of: XEO:00127 property_value: has_symbol "mol/gDW" [Instance] id: XEO:00132 name: g per gram dry weight instance_of: XEO:00127 property_value: has_symbol "g/gDW" [Instance] id: XEO:00134 name: pH instance_of: XEO:00133 [Instance] id: XEO:00136 name: microeinstein/m^2/s instance_of: XEO:00135 property_value: has_symbol "µE/m^2/s" [Instance] id: XEO:00138 name: Watts/m^2 instance_of: XEO:00135 property_value: has_symbol "Watts/m^2" [Instance] id: XEO:00140 name: percentage instance_of: XEO:00139 instance_of: XEO:00127 property_value: has_symbol "%" [Instance] id: XEO:00142 name: kilopascal instance_of: XEO:00141 property_value: has_symbol "kPa" [Instance] id: XEO:00150 name: meters per second instance_of: XEO:00149 property_value: has_symbol "m/s" [Instance] id: XEO:00154 name: liters instance_of: XEO:00153 property_value: has_symbol "l" [Instance] id: XEO:00155 name: cubic meters instance_of: XEO:00153 property_value: has_symbol "m^3" [Instance] id: XEO:00157 name: Siemens/m^2 instance_of: XEO:00156 property_value: has_symbol "S/m^2" [Instance] id: XEO:00158 name: Siemens/cm^2 instance_of: XEO:00156 property_value: has_symbol "S/cm^2" [Instance] id: XEO:00160 name: gram per liter instance_of: XEO:00159 property_value: has_symbol "g/l" [Instance] id: XEO:00166 name: liters per plant instance_of: XEO:00153 property_value: has_symbol "l/plant" [Instance] id: XEO:00167 name: megapascal instance_of: XEO:00141 property_value: has_symbol "MPa" [Instance] id: XEO:00169 name: meters instance_of: XEO:00168 property_value: has_symbol "m" [Instance] id: XEO:00172 name: 0 instance_of: XEO:00171 [Instance] id: XEO:00173 name: 1 instance_of: XEO:00171 [Instance] id: XEO:00174 name: 2 instance_of: XEO:00171 [Instance] id: XEO:00175 name: 3 instance_of: XEO:00171 [Instance] id: XEO:00176 name: 4 instance_of: XEO:00171 [Instance] id: XEO:00177 name: 5 instance_of: XEO:00171 [Instance] id: XEO:00178 name: 6 instance_of: XEO:00171 [Instance] id: XEO:00179 name: 7 instance_of: XEO:00171 [Instance] id: XEO:00180 name: 8 instance_of: XEO:00171 [Instance] id: XEO:00181 name: 9 instance_of: XEO:00171 [Instance] id: XEO:00190 name: Sun instance_of: XEO:00189 [Instance] id: XEO:00191 name: Fluorescent Tube instance_of: XEO:00189 [Instance] id: XEO:00192 name: LED instance_of: XEO:00189 [Instance] id: XEO:00193 name: High Pressure Sodium instance_of: XEO:00189 [Instance] id: XEO:00194 name: Incandescent Lamp instance_of: XEO:00189 [Instance] id: XEO:00195 name: None instance_of: XEO:00189 [Instance] id: XEO:00198 name: Undefined soil instance_of: XEO:00197 [Instance] id: XEO:00199 name: Sandy soil instance_of: XEO:00197 [Instance] id: XEO:00200 name: Clay soil instance_of: XEO:00197 [Instance] id: XEO:00201 name: Peat soil instance_of: XEO:00197 [Instance] id: XEO:00202 name: Potting soil instance_of: XEO:00197 [Instance] id: XEO:00203 name: Hydroponics instance_of: XEO:00197 [Instance] id: XEO:00204 name: Vermiculite instance_of: XEO:00197 [Instance] id: XEO:00205 name: Perlite instance_of: XEO:00197 [Instance] id: XEO:00206 name: Rockwool instance_of: XEO:00197 [Instance] id: XEO:00207 name: Gravel instance_of: XEO:00197 [Instance] id: XEO:00208 name: Coir instance_of: XEO:00197 [Instance] id: XEO:00209 name: Sand instance_of: XEO:00197 [Instance] id: XEO:00210 name: Aeroponics instance_of: XEO:00197 [Instance] id: XEO:00211 name: Agar instance_of: XEO:00197 [Instance] id: XEO:00213 name: Pot instance_of: XEO:00212 [Instance] id: XEO:00214 name: Petri dish instance_of: XEO:00212 [Instance] id: XEO:00215 name: Microplate 4-wells instance_of: XEO:00212 [Instance] id: XEO:00216 name: Microplate 6-wells instance_of: XEO:00212 [Instance] id: XEO:00217 name: Microplate 8-wells instance_of: XEO:00212 [Instance] id: XEO:00218 name: Microplate 12-wells instance_of: XEO:00212 [Instance] id: XEO:00219 name: Microplate 24-wells instance_of: XEO:00212 [Instance] id: XEO:00220 name: Microplate 48-wells instance_of: XEO:00212 [Instance] id: XEO:00221 name: Microplate 96-wells instance_of: XEO:00212 [Instance] id: XEO:00222 name: Hydroponics tray instance_of: XEO:00212 [Instance] id: XEO:00223 name: Film instance_of: XEO:00212 [Instance] id: XEO:00224 name: Open instance_of: XEO:00212 [Instance] id: XEO:00228 name: Ratio instance_of: XEO:00152 [Instance] id: XEO:00241 name: micromole per mole instance_of: XEO:00127 property_value: has_symbol "µmol/mol" [Instance] id: XEO:00242 name: part per million instance_of: XEO:00127 property_value: has_symbol "ppm"