About: http://webisa.webdatacommons.org/412693049

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	addition, super-conductors tend to be difficult to work with chemically and mechanically, unlike other conductive materials such as aluminum, polysilicon, or copper.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com