A man with a guitar is waving.
the man is playing the guitar
Playing a guitar requires two hands, hence if a person is playing a guitar they cannot be waving.
exists e1 x1 x2.(Actor(e1,x1) & v_wave(e1) & with(x1,x2) & n_guitar(x2) & n_man(x1))
exists e1 x1 x2.(n_guitar(x2) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1))