About: http://webisa.webdatacommons.org/147757291

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	Where the data structure is a tree, this may require backtracking over multiple levels of the tree. [0005] During a search, it may be necessary to backtrack repeatedly over portions of the data structure.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com