About: http://webisa.webdatacommons.org/407163458

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	Chemical agents include, for example, drugs or other pharmaceutical agents, flavoring agents or chemicals that give rise to fragrances.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com