A man wearing a white shirt is washing the outside window on the front of an airplane.
The shirt is black
The black shirt contradicts the white shirt.
exists e2 e1 s1 s2 x1 x2 x3 x4 x5 x6.(n_front(x5) & n_window(x4) & a_outside(s2) & Theme(s2,x4) & Theme(e2,x4) & Actor(e2,x1) & v_wash(e2) & on(x4,x5) & of(x5,x6) & n_airplane(x6) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_shirt(x3) & a_white(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists s1 x1.(n_shirt(x1) & Theme(s1,x1) & a_black(s1))