Here, you find the JudaicaLink Ontology, i.e., the definitions of the properties and classes used in the JudaicaLink project.
You can contribute to the ontology by either raising an issue or creating a pull request.
Here is the ontology: http://ontology.judaicalink.org/judaicalink-ontology
You can also download the ontology in Turtle format: http://ontology.judaicalink.org/judaicalink-ontology.ttl