contains (contain, has, have)
!contains (!contains, !has, !have, ncontains)
equals (=, ==, equal, eq)
!equals (!=, not, !equal, !eq, neq)
starts (starts with, start with, start, sw)
!starts (not starts with, not start with, !start, nsw)
in (within)
!in (not in, not within, !within, nin)