A group of people running a marathon while spectators watch.
There are people running.
A group of people running a marathon implies There are people running.
exists e1 p1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & exists e2 x5.(Actor(e2,x5) & v_watch(e2) & n_spectator(x5)) & while(e1,p1) & Theme(e1,x4) & Actor(e1,x3) & v_run(e1) & n_marathon(x4) & (x2 = x3) & n_people(x2) & n_group(x1))
exists p1 x1 e1 x2 x3.((x1 = x2) & Actor(e1,x3) & v_run(e1) & (x2 = x3) & n_people(x2))