What color is the box?
The box is black.
    src        edge_attr  dst
0     0               in    3
1     0   to the left of   13
2     0  to the right of    8
3     1   to the left of    6
4     1  to the right of   17
..  ...              ...  ...
71   17   to the left of   14
72   17   to the left of    2
73   17   to the left of    4
74   17   to the left of    6
75   17   to the left of    1

[76 rows x 3 columns]