The ! negation operator in property
paths negate the match. For example:
1 |
SELECT ?s ?o { ?s !nie:url ?o } |
This query looks for every other property that is not
nie:url. The same reasoning than
unrestricted predicates apply, since that specific query is
equivalent to:
1 2 |
SELECT ?s ?o { ?s ?p ?o . FILTER (?p != nie:url) } |