0 6 0 http://purl.obolibrary.org/obo/OPMI_0000377 study accession identifier 'study accession identifier' SubClassOf 'is about' some 'investigation' 'study accession identifier' SubClassOf 'CRID' http://purl.obolibrary.org/obo/OPMI_0000385 biosample identifier 'biosample identifier' SubClassOf 'CRID' http://purl.obolibrary.org/obo/OPMI_0000380 title of study 'title of study' SubClassOf 'textual entity' http://purl.obolibrary.org/obo/OPMI_0000381 human subject 'human subject' SubClassOf 'Homo sapiens' http://purl.obolibrary.org/obo/OPMI_0000386 GSM identiifier 'GSM identiifier' SubClassOf 'biosample identifier' http://purl.obolibrary.org/obo/OPMI_0000387 ImmPort biosample identifier 'ImmPort biosample identifier' SubClassOf 'is about' some 'specimen' 'ImmPort biosample identifier' SubClassOf 'biosample identifier'