2 man floating on rafts in the water.
People participate in a raft race.
men floating on rafts doesn't mean that they are in a race
exists e1 x1 x2 x3 x4.(n_water(x4) & a_topic(x1) & in(e1,x4) & on(e1,x3) & n_raft(x3) & Actor(e1,x2) & v_float(e1) & (x1 = x2) & n_man(x1) & n_date(x1) & a_date_day_02(x1) & a_date_day_02(x1))
exists e1 x1 x2 x3.(in(e1,x2) & n_race(x2) & of(x2,x3) & n_raft(x3) & Actor(e1,x1) & v_participate(e1) & n_people(x1))