What color does the grass have?
The grass has green color.
    src        edge_attr  dst
0     0   to the left of    5
1     1  to the right of    9
2     1   to the left of    2
3     1  to the right of   10
4     1   to the left of    4
5     1   to the left of    3
6     2  to the right of    9
7     2   to the left of    3
8     2  to the right of    1
9     2  to the right of    4
10    3  to the right of   10
11    3  to the right of    1
12    3  to the right of    2
13    3  to the right of    9
14    3  to the right of    7
15    4  to the right of    1
16    4               on    1
17    4   to the left of    2
18    4  to the right of    9
19    5  to the right of    0
20    5               on    0
21    6  to the right of   11
22    6   to the left of    9
23    6   to the left of   10
24    7   to the left of    3
25    7  to the right of   11
26    8   to the left of   11
27    9   to the left of    2
28    9   to the left of    3
29    9  to the right of    6
30    9   to the left of    4
31    9   to the left of    1
32   10   to the left of    1
33   10  to the right of    6
34   10   to the left of    3
35   10               on    9
36   11   to the left of    7
37   11  to the right of    8
38   11   to the left of    6