Do you see either a sheep or a cow there?
Yes, there is a cow.
    src        edge_attr  dst
0     0   to the left of    1
1     0  to the right of   17
2     0  to the right of   14
3     0  to the right of    4
4     1               on    9
..  ...              ...  ...
65   16               of    3
66   16  to the right of   13
67   17   to the left of    0
68   17   to the left of   12
69   17   to the left of    5

[70 rows x 3 columns]