Are there either any brown horses or sheep?
No, there is a sheep but it is white.
    src        edge_attr  dst
0     0               of   15
1     0  to the right of    1
2     1               of   15
3     1   to the left of    0
4     1   to the left of    5
..  ...              ...  ...
70   15  to the right of   12
71   15  to the right of   11
72   15  to the right of   13
73   15  to the right of   14
74   17   to the left of    5

[75 rows x 3 columns]