What is the color of the cage?
The cage is black.
    src        edge_attr  dst
0     0   to the left of   14
1     0   to the left of    1
2     0   to the left of   12
3     1  to the right of    5
4     1  to the right of   12
..  ...              ...  ...
66   19   to the left of    5
67   19   to the left of   15
68   20          wearing    0
69   20  to the right of   16
70   20   to the left of    1

[71 rows x 3 columns]