What animal does the person that to the right of the boat ride?
The person rides a horse.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of    3
2     1   to the left of    9
3     2  to the right of    9
4     2               by   13
..  ...              ...  ...
60   12  to the right of   11
61   12   to the left of    7
62   14   to the left of    7
63   14   to the left of    3
64   14             near    6

[65 rows x 3 columns]