About: http://webisa.webdatacommons.org/438680809

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	Q is a vertex => QE (diameter or parallel to the diameter) bisects BG & the tangent at Q is parallel to BG.
http://www.w3.org/ns/prov#wasQuotedFrom	calstatela.edu