About: http://webisa.webdatacommons.org/74050765

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	L2 is a single bond, ???O???, ???S???, ???N(R)??? (R is an alkyl group or a substituted or unsubstituted aryl group), an alkylene group or an arylene group).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com