_:b20019	<http://www.w3.org/2002/07/owl#onProperty>	<http://www.ontology-of-units-of-measure.org/resource/om-2/hasPrefix> .
_:b20019	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Restriction> .
_:b20019	<http://www.w3.org/2002/07/owl#cardinality>	"1"^^<http://www.w3.org/2001/XMLSchema#nonNegativeInteger> .