About: http://webisa.webdatacommons.org/270333648

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	where m is an integer of 0 to 12, X is O, NH, or S, and Z is OH, NH2, H, or CH3,
http://www.w3.org/ns/prov#wasQuotedFrom	google.com