About: http://webisa.webdatacommons.org/57784366

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	Next to diamonds, rubies are the hardest gems, with a 9 rating on the Mohs scale.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com