Generates a SPARQL none property set.
Empty predicates are dropped; a single surviving predicate renders as !p, while several render as !(p|q).
!p
!(p|q)
The excluded predicates, each an IRI reference or the inverse of one
The !-prefixed none property set
!
SPARQL 1.1 Property Paths
Generates a SPARQL none property set.
Empty predicates are dropped; a single surviving predicate renders as
!p, while several render as!(p|q).