About: http://webisa.webdatacommons.org/147393398

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	These composite chalcogen compounds and composite oxides may contain elements of the groups 1 to 3 of the periodic table or halogen elements, mainly for the purpose of modifying their amorphous structure.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com