Seven people are wading in a natural pool.
Seven people are up to their ankles in water.
Wading in a pool does not imply the water is up to their ankles.
exists e1 s1 x1 x2.(in(e1,x2) & n_pool(x2) & a_natural(s1) & Theme(s1,x2) & Actor(e1,x1) & v_wade(e1) & n_people(x1) & card_eq_7(x1))
exists s1 x1 x2 x3.(to(s1,x2) & in(x2,x3) & n_water(x3) & n_ankle(x2) & of(x2,x1) & n_thing(x1) & Theme(s1,x1) & a_up(s1) & n_people(x1) & card_eq_7(x1))