What color is the cap?
The cap is black.
    src        edge_attr  dst
0     0  to the right of    4
1     0   to the left of    3
2     1               of   14
3     1   to the left of    6
4     1   to the left of   12
..  ...              ...  ...
80   18  to the right of   15
81   18  to the right of   10
82   18  to the right of    1
83   18  to the right of   14
84   18  to the right of   13

[85 rows x 3 columns]