<http://webisa.webdatacommons.org/concept/_ziegler-natta_>	<http://www.w3.org/2002/07/owl#sameAs>	<http://dbpedia.org/resource/Ziegler\u2013Natta_catalyst> .
<http://webisa.webdatacommons.org/concept/_ziegler-natta_>	<http://www.w3.org/2000/01/rdf-schema#label>	"ziegler-natta" .
<http://webisa.webdatacommons.org/concept/_ziegler-natta_>	<http://webisa.webdatacommons.org/ontology#hasHead>	"ziegler-natta" .