About: http://webisa.webdatacommons.org/210174403

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	Alternatively, a precursor of an electron conducting substance can be used, in particular a polymer or sugar-type macromolecule.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com