A rock band stands on stage facing their drummer.
The drummer is a dog.
A drummer cannot be a dog.
exists e1 e2 x1 x2 x3 x4.(for(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_face(e2) & n_drummer(x4) & of(x4,x1) & n_thing(x1) & on(e1,x3) & n_stage(x3) & Actor(e1,x1) & v_stand(e1) & n_band(x1) & of(x1,x2) & n_rock(x2))
exists p1 x1.(n_drummer(x1) & exists x2.((x1 = x2) & n_dog(x2)))