A multitude of people in swim-wear play in the water in front of a white wall while people behind a row of bicycles look on.
A bunch of people swim in the ocean.
There wouldn't be a white wall in the ocean.
(x)
exists e1 x1 x2 x3.(n_ocean(x3) & in(e1,x3) & Actor(e1,x1) & v_swim(e1) & of(x1,x2) & n_people(x2) & n_bunch(x1))