| Label | Id | |
|---|---|---|
| object | http://purl.obolibrary.org/obo/BFO_0000030 | |
| obligatory symbiont | http://purl.obolibrary.org/obo/IDO_0000523 | |
| obsolescence reason specification | http://purl.obolibrary.org/obo/IAO_0000225 | |
| Obsolete Class | http://www.geneontology.org/formats/oboInOwl#ObsoleteClass | |
| one-dimensional spatial region | http://purl.obolibrary.org/obo/BFO_0000026 | |
| one-dimensional temporal region | http://purl.obolibrary.org/obo/BFO_0000038 | |
| opportunist | http://purl.obolibrary.org/obo/IDO_0000654 | |
| opportunistic infectious disposition | http://purl.obolibrary.org/obo/IDO_0000406 | |
| opportunistic pathogen | http://purl.obolibrary.org/obo/IDO_0000654 | |
| opportunitistic pathogenic disposition | http://purl.obolibrary.org/obo/IDO_0000406 | |
| organism | http://purl.obolibrary.org/obo/OBI_0100026 | |
| organism population | http://purl.obolibrary.org/obo/IDO_0000509 | |
| parasite host | http://purl.obolibrary.org/obo/IDO_0000536 | |
| parasite host role | http://purl.obolibrary.org/obo/IDO_0000413 | |
| parasite | http://purl.obolibrary.org/obo/IDO_0000526 |