A man is sitting in a chair playing a guitar.
The man is making noise with an instrument.
A man is making noise by playing the guitar
exists e1 e2 x1 x2 x3.(for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_play(e2) & n_guitar(x3) & in(e1,x2) & n_chair(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
exists e1 x1 x2 x3.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & with(x2,x3) & n_instrument(x3) & n_noise(x2))