A man in a red shirt is playing a saxophone with other street performers.
The man is playing the piano.
The man can only either be playing the saxophone or the piano.
exists e1 s1 x1 x2 x3 x4 x5 x6.(Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & with(x3,x4) & -(x4 = x6) & n_performer(x6) & of(x6,x5) & n_street(x5) & n_performer(x4) & of(x4,x5) & n_saxophone(x3) & in(x1,x2) & n_shirt(x2) & a_red(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(n_piano(x2) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1))