About: http://webisa.webdatacommons.org/58909724

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	For example, a single metal such as molybdenum or tungsten, an alloy such as copper-tungsten or 42 alloy, or a clad material such as copper-invar-copper can be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com