Which color do you think is the grass that is not short?
The grass is yellow.
    src        edge_attr  dst
0     1               in    3
1     1      in front of    4
2     4           behind    1
3     5  to the right of    7
4     6  to the right of    9
5     6  to the right of   10
6     7   to the left of    5
7     7   to the left of   13
8     7   to the left of   12
9     9   to the left of   12
10    9   to the left of    6
11   10   to the left of   12
12   10   to the left of    6
13   11   to the left of   12
14   12  to the right of    7
15   12  to the right of    9
16   12  to the right of   11
17   12  to the right of   10
18   13  to the right of    7