About: http://webisa.webdatacommons.org/326071212

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	R7 is a hydrogen, hydroxy group, or a C1 to C20 alkyl group, preferably a hydrogen or a hydroxy group, more preferably a hydroxy group;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com