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