About: http://webisa.webdatacommons.org/431819905

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	Inorganic reducing agents such as hydrazine, sulfite salts, formate salts, borohydride salts, TiCl3, or FeCl2, could also be employed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com