About: http://webisa.webdatacommons.org/421152167

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	In addition, when the triol or tetraol is a polyester, the diol must be a polyether, and when the triol or tetraol is a polyether, the diol must be a polyester.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es