Man singing and playing guitar for a small audience.
Man singing in front of an audiance.
we have the rephrasing of Man singing  for a small audience
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(s1) & subset_of(x3,s1) & for(x3,x4) & n_audience(x4) & a_small(s2) & Theme(s2,x4) & n_guitar(x3) & Actor(e1,x3) & v_play(e1) & subset_of(x1,s1) & n_singing(x1) & of(x1,x2) & n_man(x2))
exists x1 x2 x3 x4.(a_topic(x1) & in(x1,x3) & of(x3,x4) & n_audiance(x4) & n_front(x3) & n_singing(x1) & of(x1,x2) & n_man(x2))