FIGURE 1.

An example of an Association represented in Biolink Model. In (a), the green ovals represent the subject and object classes, connected by a predicate. Together, the classes and the predicate constitute a statement or “core triple” in the model. Edge properties provide further context and qualification to the core triple. The entire diagram, including the core triple and its provenance, represents a Biolink Model “association.” In (b), we see a specific example of a “biolink:DiseaseToPhenotypicFeatureAssociation,” where the subject is “biolink:Disease,” the object is “biolink:PhenotypicFeature,” and the predicate is “biolink:has_phenotype.” In addition, the “biolink:publications” property (lavender oval) records the provenance of the core triple.