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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	Pine bark substance could be potent melanoma drug5/20/14A substance that comes from pine bark is a potential source for a new treatment of melanoma, according to Penn State College of Medicine researchers.
http://www.w3.org/ns/prov#wasQuotedFrom	psu.edu