The man is wearing a black shirt and holding up a blue item in a window.
The man is wearing a green shirt.
The man must be wearing either a black or green shirt, not both.
exists e2 e1 s1 s2 s3 x1 x2 x3 x4.(n_man(x1) & in(e2,x4) & n_window(x4) & a_up(s3) & Manner(e2,s3) & Theme(e2,x3) & Actor(e2,x1) & v_hold(e2) & n_item(x3) & a_blue(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_shirt(x2) & a_black(s1) & Theme(s1,x2))
exists e1 s1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_shirt(x2) & a_green(s1) & Theme(s1,x2))