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