Is the red flag on the left?
No, the flag is on the right of the image.
    src        edge_attr  dst
0     0  to the right of   10
1     0   to the left of    5
2     0   to the left of    4
3     0   to the left of    9
4     0   to the left of    7
..  ...              ...  ...
65   13   to the left of    4
66   13   to the left of    2
67   13   to the left of    5
68   13               on   14
69   13   to the left of    7

[70 rows x 3 columns]