Do you see either a dog or a cat?
No, there are no cats or dogs.
     src        edge_attr  dst
0      0  to the right of   10
1      0  to the right of   18
2      0  to the right of   22
3      0  to the right of   28
4      1  to the right of   30
..   ...              ...  ...
201   30   to the left of   19
202   30   to the left of   21
203   30   to the left of   23
204   30   to the left of   25
205   30  to the right of   28

[206 rows x 3 columns]