About: http://webisa.webdatacommons.org/218385236

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	The divalent group having a urethane-bond unit may be exemplified by those represented by the formula ???R???OCONH???R??? or ???R???NHCOO???R??? wherein R is an alkylene group having 1 to 8 carbon atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com