Who is riding?
The guy is riding.
   src        edge_attr  dst
0    1               on    0
1    1          wearing    3
2    1             with   12
3    1               on    8
4    4   to the left of    5
5    5  to the right of    4
6   10               on    8
7   10          holding    5
8   11  to the right of   12
9   12   to the left of   11