Sequence Types and Features Ontology Biological Collections Ontology Source
http://purl.obolibrary.org/obo/SO_0000348 http://purl.obolibrary.org/obo/CHEBI_33696 LOOM
http://purl.obolibrary.org/obo/SO_0000408 http://purl.obolibrary.org/obo/BFO_0000029 LOOM