A man in a hat is displaying pictures next to a skier in a blue hat.
The skier is not wearing a hat.
The man can't wear a hat and not wear a hat.
exists e1 s1 x1 x2 x3 x4 x5.(in(e1,x5) & n_hat(x5) & a_blue(s1) & Theme(s1,x5) & to(e1,x4) & n_skier(x4) & r_next(e1) & Theme(e1,x3) & Actor(e1,x1) & v_display(e1) & n_picture(x3) & in(x1,x2) & n_hat(x2) & n_man(x1))
exists x1.(n_skier(x1) & -exists e1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_hat(x2)))