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Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	e compound wherein the metal is a rare earth metal, and a metal alkyl compound wherein the metal is aluminum, magnesium, lithium; lead or zinc, the normally gaseous olefin is rapidly polymerized .to solid'polymers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com