About: http://webisa.webdatacommons.org/179342282

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	I have no evidence other than intuition to think this might work, and Google is unhelpful; intersecting a grid means intersecting the grid's faces.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com