About: http://webisa.webdatacommons.org/26636239

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	in which R1 is an alkylene group of at least 2 carbon atoms, preferably from about 2 to about 11 or arylene having at least about 6 carbon atoms, preferably about 6 to about 17 carbon atoms, and R2 is selected from R1 and aryl groups.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es