About: http://webisa.webdatacommons.org/435310862

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	A device according to claim 1, wherein R1 is tetravalent when R2 and R3 taken together is a member selected from the group consisting of heterocyclic and fused polycyclic rings.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com