Male guitar player on stage in a black shirt.
Someone performs.
A guitar player on stage does not imply that he performs
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x4) & in(x4,x5) & n_shirt(x5) & a_black(s1) & Theme(s1,x5) & n_stage(x4) & n_player(x1) & of(x1,x3) & n_guitar(x3) & (x1 = x2) & ne_nam_male(x2))
exists x1.(a_topic(x1) & n_perform(x1))