About: http://webisa.webdatacommons.org/454847376

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	R1 is a divalent organic group such as an alkylene, preferably having 1 to 25 carbon atoms, and an arylene, preferably having 6 to 0 carbon atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es