What is that person riding?
The person is riding the bicycle.
    src        edge_attr  dst
0     0           behind   23
1     0  to the right of   10
2     0  to the right of    7
3     0   to the left of   19
4     0   to the left of   12
..  ...              ...  ...
74   22   on the side of    5
75   23      in front of    0
76   23   to the left of   12
77   24   on the side of    3
78   24  to the right of   20

[79 rows x 3 columns]