Two children are walking through the woods.
They are on the moon
The children can't walk through the woods on the moon.
exists e1 x1 x2.(n_wood(x2) & through(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_child(x1) & card_eq_2(x1))
exists p1 x1 x2.(n_moon(x2) & n_thing(x1) & on(x1,x2))