Who is using the backpack?
The man is using the backpack.
    src        edge_attr  dst
0     0   to the left of    8
1     0  to the right of   14
2     2   to the left of   19
3     2   to the left of   11
4     2   to the left of   20
..  ...              ...  ...
60   20  to the right of   11
61   20  to the right of    3
62   20  to the right of    9
63   20  to the right of    2
64   20  to the right of   12

[65 rows x 3 columns]