Several dogs in muzzles are racing on the grass.
Several cats in muzzles are racing on the grass.
Dogs cannot become cats.
exists e1 s1 x1 x2 x3.(n_grass(x3) & on(e1,x3) & Actor(e1,x1) & v_race(e1) & in(x1,x2) & n_muzzle(x2) & n_dog(x1) & a_several(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(n_grass(x3) & on(e1,x3) & Actor(e1,x1) & v_race(e1) & in(x1,x2) & n_muzzle(x2) & n_cat(x1) & a_several(s1) & Theme(s1,x1))