On which side is the mirror, the left or the right?
The mirror is on the right of the image.
     src        edge_attr  dst
0      0  to the right of   12
1      1   to the left of   18
2      1   to the left of   20
3      1   to the left of   11
4      1   to the left of   15
..   ...              ...  ...
113   23  to the right of   14
114   23  to the right of    7
115   23  to the right of    8
116   23               on    0
117   23  to the right of    2

[118 rows x 3 columns]