# Data Packages

- [Data Packages](/guide/data-packages/data-packages.md): Curated third party data packages
- [External Ontologies](/guide/data-packages/external-ontologies.md): Reference data loaded into knowledge graphs through curated ontologies
- [Gene Ontology](/guide/data-packages/external-ontologies/gene-ontology.md)
- [Tissue](/guide/data-packages/external-ontologies/tissue.md): UBERON Tissue Ontology
- [Disease](/guide/data-packages/external-ontologies/disease.md)
- [Cell Ontology](/guide/data-packages/external-ontologies/cell-ontology.md)
- [Phenotype](/guide/data-packages/external-ontologies/phenotype.md)