A black dog playing with a purple toy.
A dog is eating food in the kitchen.
Dog can't be playing and eating at the same time.
exists s1 s2 x1 x2 x3.(a_topic(x1) & with(x1,x3) & n_toy(x3) & a_purple(s2) & Theme(s2,x3) & n_playing(x1) & of(x1,x2) & n_dog(x2) & a_black(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_kitchen(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_food(x2) & n_dog(x1))