Who is wearing the boots?
The passenger is wearing boots.
     src        edge_attr  dst
0      0   to the left of    1
1      0  to the right of    6
2      0   to the left of    8
3      0  to the right of    7
4      0  to the right of   12
..   ...              ...  ...
132   21   to the left of   10
133   21   to the left of   12
134   21   to the left of   19
135   21   to the left of    0
136   21   to the left of    5

[137 rows x 3 columns]