Two infants are at play in the yard.
The children are sleeping in their cribs.
Either infants play in the yard or children are sleeping in cribs.
exists p1 x1 x3.(n_yard(x3) & exists x2.(at(x1,x2) & in(x2,x3) & n_play(x2)) & n_infant(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_crib(x2) & of(x2,x1) & n_thing(x1) & n_child(x1) & in(e1,x2) & Actor(e1,x1) & v_sleep(e1))