People are looking at things at some kind of exhibit.
People are looking at things in the water.
People are usually not at some kind of exhibit and in the water simultaneously.
exists e1 x1 x2 x3 x4.(at(e1,x2) & at(x2,x3) & of(x3,x4) & n_exhibit(x4) & n_kind(x3) & n_thing(x2) & Actor(e1,x1) & v_look(e1) & n_people(x1))
exists e1 x1 x2 x3.(n_water(x3) & at(e1,x2) & in(x2,x3) & n_thing(x2) & Actor(e1,x1) & v_look(e1) & n_people(x1))