Is there any brown grass or mud?
No, there is grass but it is green.
    src        edge_attr  dst
0     1  to the right of   11
1     2  to the right of   17
2     2  to the right of    4
3     2   to the left of   11
4     2  to the right of    7
..  ...              ...  ...
62   17   to the left of    4
63   17   to the left of    2
64   17   to the left of   11
65   17   to the left of    6
66   18  to the right of   16

[67 rows x 3 columns]