What is the boy on, a horse or a sheep?
The boy is on a horse.
    src        edge_attr  dst
0     0          wearing   17
1     0           riding    6
2     0   to the left of   11
3     0  to the right of    4
4     0   to the left of   14
..  ...              ...  ...
56   16   to the left of    6
57   16           riding    4
58   17   to the left of   14
59   17   to the left of   11
60   17   to the left of    9

[61 rows x 3 columns]