About: http://webisa.webdatacommons.org/271288826

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	and c is an integer of from 0 to 8, each of b, d, e and f is an integer of from 1 to 8, R1 is a hydrogen atom, a C1-5 alkyl group or an acyl group, and each of R2, R3 and R4 is a C1-10 alkyl group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com