Do you see any brown grass or sand?
Yes, there is brown grass.
     src        edge_attr  dst
0      1  to the right of   12
1      1  to the right of   11
2      1  to the right of   20
3      1   to the left of   18
4      1   to the left of    3
..   ...              ...  ...
127   28   to the left of    5
128   28   to the left of   26
129   28   to the left of   19
130   28  to the right of   24
131   28  to the right of   23

[132 rows x 3 columns]