Is the mirror on the left side or on the right of the image?
The mirror is on the left of the image.
    src        edge_attr  dst
0     0  to the right of    7
1     0  to the right of    1
2     0  to the right of   10
3     1               on   10
4     1  to the right of    3
..  ...              ...  ...
64   16  to the right of   10
65   17  to the right of    1
66   17  to the right of    8
67   17  to the right of   12
68   17  to the right of   15

[69 rows x 3 columns]