About: http://webisa.webdatacommons.org/153126683

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	triangle, and one of the angles other than the right angle must be known.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com