A bald guitarist in all black clothing playing his guitar with his band.
A rock band is performing on stage.
Just because a guitarist is playing his guitar with his band, it does not necessarily mean that the band is a rock band, nor that the band is performing on stage.
exists s1 x1 x4 x5.(all x2 s2.((n_clothing(x2) & a_black(s2) & Theme(s2,x2)) -> exists e1 x1 x3.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & with(x4,x5) & n_male(x1) & (x2 = x3))) & n_band(x5) & of(x5,x1) & n_guitar(x4) & of(x4,x1) & n_male(x1) & n_guitarist(x1) & a_bald(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_stage(x3) & Actor(e1,x1) & v_perform(e1) & n_band(x1) & of(x1,x2) & n_rock(x2))