Does that grass look brown?
Yes, the grass is brown.
    src        edge_attr  dst
0     0   to the left of    6
1     1   to the left of   10
2     1   to the left of    6
3     1  to the right of    4
4     4   to the left of   10
5     4   to the left of    6
6     4   to the left of    1
7     5  on the front of    7
8     5   to the left of    6
9     6  to the right of    0
10    6  to the right of    1
11    6  to the right of    5
12    6  to the right of    4
13    6  to the right of   10
14    7               on    2
15    8  to the right of   11
16    9   to the left of   11
17   10  to the right of    1
18   10   to the left of    6
19   10  to the right of    4
20   11  to the right of    9
21   11   to the left of    8