is about organism subject age - unit organism datum http://purl.obolibrary.org/obo/GENEPIO_0001171 http://purl.obolibrary.org/obo/OBI_0100026 http://purl.obolibrary.org/obo/PATO_0000047 taxonomic datum specimen organism taxonomy (species) Mycobacterium tuberculosis lineage virulence factor name virulence testing protocol name data entity data item Pregnant Person body weights and measures