What does the person to the left of the backpack wear?
The person wears boots.
    src        edge_attr  dst
0     1               in    0
1     1   to the left of    8
2     1   to the left of    4
3     2   to the left of   15
4     3   to the left of    6
..  ...              ...  ...
64   16  to the right of    8
65   16   to the left of   12
66   16  to the right of    3
67   16          wearing   10
68   16   to the left of   15

[69 rows x 3 columns]