Are these cows or donkeys?
These are cows.
     src        edge_attr  dst
0      0   to the left of   24
1      1  to the right of   12
2      1  to the right of    2
3      2  to the right of    6
4      2  to the right of   13
..   ...              ...  ...
124   28   to the left of   12
125   28   to the left of    9
126   28   to the left of    5
127   28   to the left of   23
128   29   to the left of   10

[129 rows x 3 columns]