What is the color of the grass?
The grass is green.
    src        edge_attr  dst
0     0   to the left of   12
1     1   to the left of    4
2     1   to the left of    2
3     1   to the left of    7
4     1   to the left of    6
5     2  to the right of    1
6     2  to the right of   17
7     2  to the right of   16
8     2  to the right of    6
9     2  to the right of    5
10    2  to the right of    4
11    2  to the right of    7
12    3   to the left of    5
13    4  to the right of    1
14    4   to the left of    9
15    4   to the left of    2
16    5  to the right of    3
17    5   to the left of    2
18    6  to the right of    1
19    6   to the left of    2
20    7  to the right of    1
21    7   to the left of    2
22    7   to the left of    9
23    7  to the right of   16
24    8         carrying   10
25    8  to the right of   12
26    8      standing by    2
27    8  to the right of   17
28    9  to the right of    4
29    9  to the right of    7
30   12  to the right of    0
31   12   to the left of   14
32   12   to the left of    8
33   12   to the left of   13
34   13  to the right of   17
35   13  to the right of   12
36   13  to the right of   14
37   14   to the left of   13
38   14  to the right of   12
39   16   to the left of    7
40   16   to the left of    2
41   17   to the left of    2
42   17   to the left of   13
43   17   to the left of    8