A woman is sitting in something in water.
A woman walks on the boardwalk.
A woman can be either sitting or walking.
exists e1 x1 x2 x3.(in(e1,x2) & in(x2,x3) & n_water(x3) & n_thing(x2) & Actor(e1,x1) & v_sit(e1) & n_woman(x1))
exists e1 x1 x2.(n_boardwalk(x2) & on(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_woman(x1))