a woman plays guitar in the street.
The woman is playing a trumpet.
One cannot be playing guitar and trumpet simultaneously
exists e1 x1 x2 x3.(n_street(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_guitar(x2) & n_woman(x1))
exists e1 x1 x2.(n_woman(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_trumpet(x2))