How does that flag look, white or blue?
The flag is white.
    src        edge_attr  dst
0     0  to the right of   18
1     0  to the right of   24
2     0  to the right of    8
3     0  to the right of    3
4     1   to the left of   12
..  ...              ...  ...
61   20   to the left of    5
62   20   to the left of    6
63   21  to the right of   10
64   24   to the left of    0
65   24  to the right of    7

[66 rows x 3 columns]