What stands on the snow that is surrounded by the forest?
The tree stands on the snow.
    src        edge_attr  dst
0     0  to the right of   20
1     0   to the left of   14
2     0  to the right of    1
3     1   to the left of    0
4     1   to the left of   14
..  ...              ...  ...
71   18               on   18
72   18            below    8
73   19      standing on   18
74   19   to the left of    2
75   20   to the left of    0

[76 rows x 3 columns]