The wood used for the seat portion of the bench is comprised of different colored slats.
The bench is made of different kinds of wood.
All kinds of wood can produce a variety of Colors.
exists e4 e1 e3 e2 x1 x2 x3 x4 x5 x6 x7.(n_slat(x7) & Theme(e4,x7) & v_color(e4) & n_bench(x5) & n_portion(x3) & of(x3,x4) & n_seat(x4) & n_wood(x1) & of(e2,x6) & -(x6 = x7) & n_slat(x6) & Theme(e3,x6) & v_color(e3) & Theme(e2,x1) & v_comprise(e2) & for(e1,x3) & of(x3,x5) & Theme(e1,x2) & v_use(e1) & (x1 = x2))
exists e1 x1 x2 x3 x4.(n_kind(x3) & n_bench(x1) & of(e1,x2) & of(x2,x4) & n_wood(x4) & -(x2 = x3) & n_kind(x2) & Theme(e1,x1) & v_make(e1))