A man performing for a crowd.
An artist's performance.
an artist's can  be a man
exists e1 x1 x2 x3.(a_topic(x1) & for(e1,x3) & n_crowd(x3) & Actor(e1,x2) & v_perform(e1) & (x1 = x2) & n_man(x1))
exists x1 x2.(a_topic(x2) & n_performance(x2) & of(x2,x1) & n_artist(x1))