A man with glasses playing a guitar.
A singer and songwriter performs a song for a show.
Not all man with glasses playing a guitar is a singer and songwriter.
exists e1 x1 x2 x3 x4.(a_topic(x1) & with(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_guitar(x4) & (x2 = x3) & n_glass(x2) & n_man(x1))
exists e1 x1 x2 x3 x4 x5.(for(e1,x5) & n_show(x5) & Theme(e1,x4) & Actor(e1,x1) & v_perform(e1) & n_song(x4) & n_songwriter(x3) & n_singer(x2) & subset_of(x3,x1) & subset_of(x2,x1))