A speedboat racer stands on his boat in the water.
A speedboat racer in his boat competing in a race
We don't know that the speedboat racer is competing.
exists e1 x1 x2 x3 x4.(n_water(x4) & on(e1,x3) & in(x3,x4) & n_boat(x3) & of(x3,x1) & n_male(x1) & Actor(e1,x1) & v_stand(e1) & n_racer(x1) & of(x1,x2) & n_speedboat(x2))
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x3) & in(e1,x5) & n_race(x5) & Actor(e1,x4) & v_compete(e1) & (x3 = x4) & n_boat(x3) & of(x3,x1) & n_male(x1) & n_racer(x1) & of(x1,x2) & n_speedboat(x2))