three children are watching a movie.
Nobody is watching.
Three is more than nobody.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_movie(x2) & n_child(x1) & card_eq_3(x1))
-exists e1 x1.(Actor(e1,x1) & v_watch(e1) & n_person(x1))