A single runner is watched by onlookers in a race.
A man is running in a race.
A man is a single runner.
exists e1 s1 x1 x2 x3.(Actor(e1,x2) & in(x2,x3) & n_race(x3) & n_onlooker(x2) & Theme(e1,x1) & v_watch(e1) & n_runner(x1) & a_single(s1) & Theme(s1,x1))
exists e1 x1 x2.(in(e1,x2) & n_race(x2) & Actor(e1,x1) & v_run(e1) & n_man(x1))