Two children walk down a path into the woods.
Two children are staring at the sky.
Children not be staring at the sky if they are walking into the woods.
exists e1 x1 x2 x3.(n_wood(x3) & into(e1,x3) & down(e1,x2) & n_path(x2) & Actor(e1,x1) & v_walk(e1) & n_child(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_sky(x2) & at(e1,x2) & Actor(e1,x1) & v_stare(e1) & n_child(x1) & card_eq_2(x1))