RDF Query of Class

This allows us to query for whether a resources is in a particular class rather than specific values that may have put it in that class:

ns r=<http://www.w3.org/1999/02/22-rdf-syntax-ns#>
ns p=<http://www.w3.org/TR/WD-pics2.0#>
slurp ../../../../../../../WWW/2004/05/07-CS-RDF/ratingData.rdf ()
ask (?r p:left ?pre .
     ?r owl:class sv:Bang)
collect (?pre ?vc)