A person rides a white and green sail board across the water.
The person is on the beach
The people in the sail board are in the water, the people on the beach are out of the water.
exists e1 s1 s2 x1 x2 x3 x4.(n_water(x4) & across(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_board(x2) & of(x2,x3) & n_sail(x3) & a_green(s2) & Theme(s2,x2) & a_white(s1) & Theme(s1,x2) & n_person(x1))
exists p1 x1 x2.(n_beach(x2) & n_person(x1) & on(x1,x2))