What is the color of the grass?
The grass is brown.
    src        edge_attr  dst
0     0   to the left of    9
1     1  to the right of   10
2     3  to the right of    8
3     3   to the left of    9
4     4  to the right of    8
5     4   to the left of    9
6     7   to the left of    9
7     8   to the left of    9
8     8   to the left of    4
9     8   to the left of    3
10    9      standing in    6
11    9  to the right of    3
12    9  to the right of    0
13    9  to the right of    7
14    9  to the right of    8
15    9  to the right of    4
16   10   to the left of    1