About: http://webisa.webdatacommons.org/306771374

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	The system also needs to be capable of being quickly changed over to handle the various types of materials, such as glass and polycarbonate or CR39???.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es