About: http://webisa.webdatacommons.org/321153310

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	R2 is a member selected from the group consisting of hydrogen and loweralkyl, preferably methyl and ethyl;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com