| Ontology | Classes and object properties |
|---|---|
| Apollo Structured Vocabulary | 1 |
| Cell Line Ontology | 5 |
| Cell Ontology | 2 |
| Chemical Entities of Biological Interest | 37 |
| Chemical Methods Ontology | 2 |
| eagle-i resource ontology | 8 |
| Gene Ontology | 5 |
| Molecular Process Ontology | 7 |
| NCBI organismal classification | 3 |
| Ontology for Biomedical Investigations | 27 |
| Relations Ontology | 3 |
| The Statistical Methods Ontology | 2 |