About: http://webisa.webdatacommons.org/366384660

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 hydrogen or a monovalent organic group such as alkyl, alkenyl, cycloalkyl, aryl, aralkyl or a heterocyclic aromatic group,
http://www.w3.org/ns/prov#wasQuotedFrom	google.com