Are there any skis to the left of the sandwich?
Yes, there are skis to the left of the sandwich.
     src        edge_attr  dst
0      0   to the left of   19
1      0  to the right of   34
2      0  to the right of    7
3      0   to the left of    5
4      0   to the left of   11
..   ...              ...  ...
256   34   to the left of    5
257   34   to the left of    9
258   34   to the left of   11
259   34  to the right of    7
260   34   to the left of   29

[261 rows x 3 columns]