_:b15998	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Restriction> .
_:b15998	<http://www.w3.org/2002/07/owl#onProperty>	<http://www.w3.org/ns/sosa/usedProcedure> .
_:b15998	<http://www.w3.org/2002/07/owl#someValuesFrom>	<http://w3id.org/glosis/model/procedure/PhosphorusRetentionProcedure> .