A central home for ontology definition files which define metadata tags used to label CellML files. The labelled CellML files can then be used by both Chaste and the ModellingWebLab by them referring to this central ontology repository.
oxford_metadata.ttl is the human-readable file which should be updated.
After updates, run
python ttl2rdf.py oxford_metadata.ttl oxford_metadata.rdf
to update the RDF file to match, and commit both.