Six people in a boat floating in the water.
A group of people are boating on a lake.
We don't know the body of water, like boating on a "lake", that the boat is floating in.
exists e1 x1 x2 x3 x4.(n_water(x4) & a_topic(x1) & in(x1,x2) & in(e1,x4) & Actor(e1,x3) & v_float(e1) & (x2 = x3) & n_boat(x2) & n_people(x1) & card_eq_6(x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_lake(x3) & Actor(e1,x1) & v_boat(e1) & of(x1,x2) & n_people(x2) & n_group(x1))