| http://www.w3.org/ns/prov#value | - To illustrate with an example, suppose an initial keyword search for ???dogsled racing??? produces a result set of documents containing ???dogsled racing.??? QueryEngine can analyze these documents to produce a list of the top four most frequent topics that occur amongst the documents, such as topic:Iditerod, topic:Alaska, topic: ???winter sports???, and topic:snow.
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