Entities
- Nodes in a graph
- Represents entities found in biological and biomedical knowledge
- Arranged in a hierarchy
- Root of all entities is the ‘named thing’ class
Examples: Gene, Protein, Disease, Phenotypic Feature
Each entity class has
- its own unique stable URI
- mappings to other ontologies
- list of valid ID prefixes
Higher-level terms that can be used to categorize nodes in a KG.
For more detailed typing, one can use specific terms from an ontology.
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