<http://identifiers.org/obo.psi-mod/MOD:00814> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.biopax.org/release/biopax-level3.owl#SequenceModificationVocabulary> .
<http://identifiers.org/obo.psi-mod/MOD:00814> <http://www.biopax.org/release/biopax-level3.owl#xref> <urn:biopax:UnificationXref:PROTEIN+MODIFICATION+ONTOLOGY_MOD%3A00814> .
<http://identifiers.org/obo.psi-mod/MOD:00814> <http://www.biopax.org/release/biopax-level3.owl#term> "O-xylosyl-L-serine"^^<http://www.w3.org/2001/XMLSchema#string> .