About: http://webisa.webdatacommons.org/308367674

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	If the object is an organic shape or the hole intersects more than a few faces this simple operation can involve some serious math.
http://www.w3.org/ns/prov#wasQuotedFrom	grabcad.com