Who is on the horse?
The man is on the horse.
    src        edge_attr  dst
0     0  to the right of   15
1     1   to the left of   18
2     1   to the left of   12
3     1   to the left of    8
4     1   to the left of   11
..  ...              ...  ...
69   20   to the left of    5
70   20   to the left of    4
71   20   to the left of    7
72   20   to the left of   19
73   21  to the right of   17

[74 rows x 3 columns]