How big is this cage?
The cage is huge.
    src        edge_attr  dst
0     0          wearing    2
1     0  to the right of   11
2     0  to the right of    3
3     0  to the right of    6
4     0  to the right of   16
..  ...              ...  ...
59   19  to the right of   16
60   19  to the right of    6
61   20  to the right of   16
62   20  to the right of    6
63   20  to the right of   13

[64 rows x 3 columns]