Three people are walking on rocks towards a lake.
Some people are outside.
walking on rocks towards lake implies that they are outside
exists e1 x1 x2 x3.(towards(e1,x3) & n_lake(x3) & on(e1,x2) & n_rock(x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1) & card_eq_3(x1))
exists s1 x1.(Theme(s1,x1) & a_outside(s1) & n_people(x1))