Are there either any cats or horses?
Yes, there is a horse.
     src        edge_attr  dst
0      0   to the left of   16
1      0   to the left of   28
2      0   to the left of   22
3      0   to the left of    7
4      0  to the right of    1
..   ...              ...  ...
192   29   to the left of    9
193   29  to the right of    1
194   29   to the left of   21
195   29   to the left of   28
196   29  to the right of   13

[197 rows x 3 columns]