About: http://webisa.webdatacommons.org/432882941

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	Further, such rods 50, 150, 250 may be made from one or more materials other than metals such as polymers, ceramics, cements, glass, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr