Are these zebras or a sheep?
These are zebras.
    src        edge_attr  dst
0     1               of   14
1     1  to the right of   13
2     1  to the right of    5
3     1  to the right of   17
4     2  to the right of    8
..  ...              ...  ...
64   17   to the left of    1
65   17   to the left of    7
66   18   to the left of    6
67   18               of   14
68   18  to the right of    5

[69 rows x 3 columns]