Is there either a bear or a zebra in the photograph?
Yes, there is a zebra.
    src        edge_attr  dst
0     0  to the right of    4
1     0  to the right of    3
2     0  to the right of   21
3     1  to the right of    6
4     1  to the right of    3
..  ...              ...  ...
68   21   to the left of    0
69   21  to the right of    7
70   21  to the right of   22
71   21  to the right of    8
72   22   to the left of   21

[73 rows x 3 columns]