What color does the grass have?
The grass has green color.
    src        edge_attr  dst
0     0  to the right of    6
1     1  to the right of    4
2     2   to the left of   10
3     2  to the right of    4
4     3   to the left of   10
5     3  to the right of    4
6     4   to the left of    2
7     4   to the left of    1
8     4   to the left of    3
9     5   to the left of    7
10    6   to the left of   10
11    6   to the left of    9
12    6   to the left of    0
13    6   to the left of    7
14    7  to the right of   12
15    7  to the right of    5
16    7  to the right of    6
17    7  to the right of    8
18    8   to the left of    7
19    9               in   10
20    9  to the right of    6
21   10  to the right of    6
22   10  to the right of    3
23   10  to the right of    2
24   12   to the left of    7