What are the horses that are to the left of the other horse doing?
The horses are walking.
    src        edge_attr  dst
0     0   to the left of   10
1     0   to the left of   14
2     0   to the left of    2
3     0   to the left of    1
4     0   to the left of    6
..  ...              ...  ...
61   14               of    1
62   14  to the right of    0
63   14  to the right of   10
64   14   to the left of    8
65   14   to the left of    6

[66 rows x 3 columns]