What color is the tie?
The tie is gray.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of    4
2     0  to the right of   15
3     0  to the right of    2
4     0  to the right of    1
..  ...              ...  ...
81   21   to the left of   13
82   21   to the left of   12
83   21   to the left of   20
84   22  to the right of    4
85   22  to the right of    5

[86 rows x 3 columns]