About: http://webisa.webdatacommons.org/131279541

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	An acute angle is an angle that has a value greater than 0 degrees but less than 90 degrees (90??).
http://www.w3.org/ns/prov#wasQuotedFrom	numbernut.com