Photographer shooting pictures of a old sign.
The photographer is wearing a black baseball hat.
The photographer may not be wearing a black baseball hat at all.
exists s1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x4) & n_sign(x4) & a_old(s1) & Theme(s1,x4) & n_picture(x1) & of(x1,x3) & n_shooting(x3) & (x1 = x2) & ne_nam_photographer(x2))
exists e1 s1 x1 x2 x3.(n_photographer(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_hat(x2) & of(x2,x3) & n_baseball(x3) & a_black(s1) & Theme(s1,x2))