About: http://webisa.webdatacommons.org/87278335

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	Pick a ray origin using direction * X, where X is a number large enough to guarantee that the ray origin is outside of the convex shape.
http://www.w3.org/ns/prov#wasQuotedFrom	gamedev.net