3 4 0 http://purl.obolibrary.org/obo/RBO_00010061 particle track penumbra 'particle track penumbra' SubClassOf 'part of' only 'particle track' http://purl.obolibrary.org/obo/RBO_00010062 particle track core 'particle track core' SubClassOf 'part of' only 'particle track' http://purl.obolibrary.org/obo/IAO_0000032 scalar measurement datum 'scalar measurement datum' SubClassOf http://purl.obolibrary.org/obo/IAO_0000004 min 1 http://www.w3.org/2000/01/rdf-schema#Literal http://purl.obolibrary.org/obo/RBO_00010063 nanometric volume http://purl.obolibrary.org/obo/RBO_00010064 energy deposition event 'energy deposition event' SubClassOf 'processual entity' http://purl.obolibrary.org/obo/RBO_00010065 atomic mass 'atomic mass' SubClassOf 'mass' http://purl.obolibrary.org/obo/RBO_00010067 atomic weight 'atomic weight' SubClassOf 'mass'