The bear is where?
The bear is on the snow.
    src        edge_attr  dst
0     0   to the left of   21
1     0  to the right of    7
2     2   to the left of    8
3     2               of   12
4     2  to the right of   19
..  ...              ...  ...
62   20   to the left of   21
63   20  to the right of   12
64   21  to the right of   20
65   21  to the right of    7
66   21  to the right of    0

[67 rows x 3 columns]