Which kind of vehicle is the man in front of?
The man is in front of the car.
    src        edge_attr  dst
0     0  to the right of    1
1     1               on    2
2     1   to the left of    0
3     1   to the left of   16
4     2   to the left of    6
..  ...              ...  ...
68   16  to the right of    6
69   16  to the right of    4
70   16  to the right of   13
71   16  to the right of    7
72   16   to the left of   11

[73 rows x 3 columns]