What is covered with snow?
The post is covered with snow.
    src        edge_attr  dst
0     0   to the left of    5
1     0   to the left of   15
2     1  to the right of    3
3     1   to the left of   15
4     1  to the right of    6
..  ...              ...  ...
66   18   to the left of    5
67   20   to the left of   12
68   20   to the left of    5
69   20   to the left of    7
70   20   to the left of    8

[71 rows x 3 columns]