The snow is on what?
The snow is on the trees.
    src        edge_attr  dst
0     0   to the left of   12
1     0   to the left of   11
2     0   to the left of    1
3     0  to the right of    3
4     0   to the left of    4
..  ...              ...  ...
57   18   to the left of   13
58   18   to the left of    6
59   18  to the right of    7
60   19  to the right of   16
61   19  to the right of    5

[62 rows x 3 columns]