A man is playing a guitar solo
A man is playing guitar.
a man is playing his guitar
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_solo(x2) & of(x2,x3) & n_guitar(x3) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_guitar(x2) & n_man(x1))