Do you see any mirror?
No, there are no mirrors.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of   12
2     0  to the right of    8
3     2   to the left of    3
4     2   to the left of    8
..  ...              ...  ...
58   18  to the right of   16
59   18   to the left of    4
60   18  to the right of    5
61   19  to the right of    8
62   19  to the right of    6

[63 rows x 3 columns]