About: http://webisa.webdatacommons.org/376526184

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 spacer can comprise alkyl, ether, thioether, aryl, siloxane, amine or unsaturated groups, or heteroatoms such as silicon, boron or phosphorus.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com