Man sitting on milk crate plays guitar on sidewalk.
The man is playing the clarinet.
The man cannot play the guitar and the clarinet at the same time.
exists e1 e2 x1 x2 x3 x4 x5 x6.(on(e2,x6) & n_sidewalk(x6) & Theme(e2,x5) & Actor(e2,x1) & v_play(e2) & n_guitar(x5) & on(e1,x3) & n_crate(x3) & of(x3,x4) & n_milk(x4) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2.(n_clarinet(x2) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1))