Is the rectangular mirror on the left?
No, the mirror is on the right of the image.
    src        edge_attr  dst
0     1  to the right of   11
1     1   to the left of    4
2     1   to the left of   14
3     2   to the left of    3
4     2   to the left of   12
..  ...              ...  ...
78   20   to the left of   15
79   20  to the right of   11
80   20  to the right of   13
81   21   to the left of   12
82   21  to the right of   19

[83 rows x 3 columns]