What color is the sandy ground?
The ground is white.
    src        edge_attr  dst
0     2  to the right of    4
1     3   to the left of    8
2     4   to the left of    8
3     4   to the left of    2
4     4   to the left of   11
5     6            below    7
6     7      in front of    8
7     8  to the right of    4
8     8  to the right of    9
9     8  to the right of    3
10    8  to the right of   10
11    8           behind    7
12    9   to the left of    8
13   10               of    7
14   10   to the left of    8
15   11  to the right of    4