A line of green and red dune buggys on a gravel road near rocks and large pine trees.
A line of yellow and blue dune buggys are on the gravel road.
The color is either  green and red dune buggys or yellow and blue dune buggys.
exists s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8 x9.(a_topic(x1) & of(x1,x2) & on(x2,x4) & near(x4,x6) & subset_of(x8,x6) & n_tree(x8) & of(x8,x9) & n_pine(x9) & a_large(s3) & Theme(s3,x8) & subset_of(x7,x6) & n_rock(x7) & n_road(x4) & of(x4,x5) & n_gravel(x5) & n_buggy(x2) & of(x2,x3) & n_dune(x3) & a_red(s2) & Theme(s2,x2) & a_green(s1) & Theme(s1,x2) & n_line(x1))
exists p1 s1 s2 x1 x2 x3 x4 x5.(n_road(x4) & of(x4,x5) & n_gravel(x5) & on(x1,x4) & of(x1,x2) & n_buggy(x2) & of(x2,x3) & n_dune(x3) & a_blue(s2) & Theme(s2,x2) & a_yellow(s1) & Theme(s1,x2) & n_line(x1))