A man celebrating being watched by a crowd.
A crowd of people watching a man.
The man celebrates being watched by a crowd, so the crowd is watching the man.
exists e1 x1 x2 x3.(a_topic(x1) & Actor(e1,x3) & n_crowd(x3) & Theme(e1,x2) & v_watch(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_watch(e1) & n_man(x4) & (x2 = x3) & n_people(x2) & n_crowd(x1))