About: http://webisa.webdatacommons.org/104480012

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	Each R1 is hydrogen or an alkyl group having 1 to 4 carbon atoms, R2 is an alkyl group having 1 to 4 carbon atoms, x is 0 or 1, and Q is NH or oxygen.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com