About: http://webisa.webdatacommons.org/214839151

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 first and second arms 70, 72 may be provided at an angle, such as an acute angle, with respect to each other.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com