About: http://webisa.webdatacommons.org/235792837

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	Unless stated otherwise, all groups and substituents, including but not limited to R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R21, R50, RN1, RN2, A, B, and Het, have the definitions as defined hereinbefore and hereinafter.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com