Seven people are wading in a natural pool.
they have waders on
Wading in a pool does not imply they have on waders.
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 e1 s1 x1 x2.(n_thing(x1) & a_on(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_wader(x2))