Who is carrying the backpack?
The skier is carrying the backpack.
    src        edge_attr  dst
0     1  to the right of    9
1     1  to the right of   10
2     1  to the right of   14
3     1   to the left of    6
4     1  to the right of   17
..  ...              ...  ...
57   17  to the right of   14
58   17  to the right of   13
59   17  to the right of    9
60   17   to the left of    6
61   17  to the right of   16

[62 rows x 3 columns]