A man is playing a xylophone.
The man is part of a band
A person can play a xylophone whether or not they are part of a band.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_xylophone(x2) & n_man(x1))
exists p1 x1.(n_man(x1) & exists x2 x3.((x1 = x2) & of(x2,x3) & n_band(x3) & n_part(x2)))