Lots of people play in the water at the beach.
The people are jumping the waves in the water at the beach.
People can play in the water without jumping the waves.
exists e1 x1 x2 x3 x4.(n_beach(x4) & n_water(x3) & at(e1,x4) & in(e1,x3) & Actor(e1,x1) & v_play(e1) & of(x1,x2) & n_people(x2) & n_lot(x1))
exists e1 x1 x2 x3 x4.(n_beach(x4) & n_water(x3) & n_wave(x2) & n_people(x1) & at(e1,x4) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_jump(e1))