What is the photo showing?
It is showing a pasture.
    src        edge_attr  dst
0     0   to the left of   11
1     0  to the right of   10
2     0   to the left of   12
3     0  to the right of    6
4     0  to the right of    5
..  ...              ...  ...
85   16   to the left of   12
86   17               on   14
87   17  to the right of    4
88   17               in   14
89   18               in   15

[90 rows x 3 columns]