ASK WHERE {
	<http://rdfa.info/test-suite/test-cases/rdfa1.1/html5/0104.html#interfenestration> <http://www.example.org/size> _:a . 
 	_:a <http://www.w3.org/1999/02/22-rdf-syntax-ns#value> "17" .
 	_:a <http://www.example.org/unit> "character" .
 }
