Who is riding on the skateboard?
The man is riding on a skateboard.
    src       edge_attr  dst
0     0  to the left of   20
1     0  to the left of   22
2     0  to the left of   21
3     0  to the left of   11
4     0  to the left of    3
..  ...             ...  ...
84   28  to the left of    9
85   30  to the left of   12
86   30  to the left of   10
87   30  to the left of    4
88   31              on   18

[89 rows x 3 columns]