About: http://webisa.webdatacommons.org/240483474

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	materials are extremely hard such as quartz and silica. The problem we have
http://www.w3.org/ns/prov#wasQuotedFrom	histosearch.com