Is it a beach?
No, it is a field.
    src        edge_attr  dst
0     0   to the left of   17
1     0   to the left of   15
2     0   to the left of    1
3     0   to the left of   16
4     0   to the left of   12
..  ...              ...  ...
78   17  to the right of    0
79   17   to the left of   12
80   17  to the right of   15
81   19  to the right of    4
82   19  to the right of    5

[83 rows x 3 columns]