Is there any white cow or horse?
Yes, there is a white horse.
    src        edge_attr  dst
0     0  to the right of   11
1     2  to the right of   17
2     2  to the right of   15
3     3   to the left of   19
4     3   to the left of    9
..  ...              ...  ...
63   20   to the left of   17
64   21   to the left of   17
65   21   to the left of    8
66   21       walking on    1
67   21             with   20

[68 rows x 3 columns]