Open Biological and Biomedical Ontologies     go
JSON YAML RDF (turtle)
Resolve obo:go with Default Provider  
Provider Name Provider Code URI
Open Biological and Biomedical Ontologies obo http://purl.obolibrary.org/obo/go
Open Biological and Biomedical Ontologies (RDF) rdf http://purl.obolibrary.org/obo/go
Bioregistry bioregistry https://bioregistry.io/obo:go
BioPortal Prefixes bioportal https://bioportal.bioontology.org/ontologies/OBO/?p=classes&conceptid=http://purl.obolibrary.org/obo/go