About: http://webisa.webdatacommons.org/442610353

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	A cluster is defined as any two elements, such as two nodes, or a node and a page pointer, or terminal text and a node to name a few possibilities.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es