A colorful parade in honor of photos depicted on a board.
A board is blank.
If a board has photos depicted on it then it cannot be blank.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & of(x2,x3) & on(e1,x5) & n_board(x5) & Theme(e1,x4) & v_depict(e1) & (x3 = x4) & n_photo(x3) & n_honor(x2) & n_parade(x1) & a_colorful(s1) & Theme(s1,x1))
exists s1 x1.(Theme(s1,x1) & a_blank(s1) & n_board(x1))