Is there any brown sand or grass?
Yes, there is brown grass.
     src        edge_attr  dst
0      0  to the right of    5
1      0  to the right of   15
2      1  to the right of    9
3      1  to the right of    2
4      2   to the left of   17
..   ...              ...  ...
123   25   to the left of   12
124   25  to the right of    2
125   25  to the right of   17
126   25  to the right of   18
127   25  to the right of   22

[128 rows x 3 columns]