_:b19221	<http://www.w3.org/2002/07/owl#unionOf>	_:b20423 .
_:b19221	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
_:b20423	<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#nil> .
_:b20423	<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>	<http://www.ontology-of-units-of-measure.org/resource/om-2/UnitExponentiation> .