a man with long hair on stage playing an keyboard with a mic in front of him.
The man with the keyboard was riding an exercise bike.
A man playing a keyboard is not likely to be also riding an exercise bike.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & Theme(e1,x5) & Actor(e1,x4) & v_play(e1) & with(x5,x6) & in(x6,x7) & of(x7,x1) & n_male(x1) & n_front(x7) & n_mic(x6) & n_keyboard(x5) & (x1 = x4) & with(x1,x2) & on(x2,x3) & n_stage(x3) & n_hair(x2) & a_long(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3 x4.(n_keyboard(x2) & n_man(x1) & Theme(e1,x3) & Actor(e1,x1) & v_ride(e1) & n_bike(x3) & of(x3,x4) & n_exercise(x4) & with(x1,x2))