About: http://webisa.webdatacommons.org/393692178

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	Additional attributes stored with each object are a flag to indicate if the object is visible, a flag to indicate if the children are visible and an indicator of the depth of explosion (number of levels visible).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com