About: http://webisa.webdatacommons.org/427854829

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	(iii) n and m is 0; R5 is a hydrogen atom; R1 is an alkoxy group; R2 and R3 independently are an alkyl group; and the other symbols are of the same meanings as defined above,
http://www.w3.org/ns/prov#wasQuotedFrom	google.com