The dog plays with a purple toy near a cat.
The cat is playing with the purple toy while the dog watches.
Either the dog plays or the cat is playing.
exists e1 s1 x1 x2 x3.(n_dog(x1) & with(e1,x2) & near(x2,x3) & n_cat(x3) & n_toy(x2) & a_purple(s1) & Theme(s1,x2) & Actor(e1,x1) & v_play(e1))
exists e1 s1 x1 x2 x3 x4.(n_watch(x3) & of(x3,x4) & n_dog(x4) & n_toy(x2) & a_purple(s1) & Theme(s1,x2) & n_cat(x1) & while(e1,x3) & with(e1,x2) & Actor(e1,x1) & v_play(e1))