About: http://webisa.webdatacommons.org/30404151

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 a group is on layer and its primitive objects are on any layer other than Layer0, you will find that turning layers on and off will cause odd pieces of youre model to disappear seemingly at random.
http://www.w3.org/ns/prov#wasQuotedFrom	harvard.edu