Prefixes the predicate set with !, matching any predicate outside it; an inverse entry negates the
reverse direction. Empty predicates, such as those produced by nil, are dropped first; a single surviving
predicate renders as !pred, while several render as the parenthesised !(a|b) form.
Generates a SPARQL none property set.
Prefixes the predicate set with
!, matching any predicate outside it; an inverse entry negates the reverse direction. Empty predicates, such as those produced by nil, are dropped first; a single surviving predicate renders as!pred, while several render as the parenthesised!(a|b)form.