About: http://webisa.webdatacommons.org/79343329

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	Typical examples of structural units containing such polar groups include: where R represents hydrogen or an alkyl radical of preferably not more than six carbon atoms and n is an integer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com