The two dogs are playing in the yard.
The two dogs are playing in the yard waiting for something to eat.
Playing does not imply waiting.
exists e1 x1 x2.(n_yard(x2) & n_dog(x1) & card_eq_2(x1) & in(e1,x2) & Actor(e1,x1) & v_play(e1))
exists e2 e1 p1 x1 x2.(n_yard(x2) & n_dog(x1) & card_eq_2(x1) & for(e1,e2) & Topic(e2,p1) & Actor(e2,x1) & v_wait(e2) & exists e3 x3.(Actor(e3,x3) & v_eat(e3) & n_thing(x3)) & in(e1,x2) & Actor(e1,x1) & v_play(e1))