Is the round mirror on the right or on the left?
The mirror is on the right of the image.
    src        edge_attr  dst
0     0   to the left of    4
1     0  to the right of   10
2     0   to the left of   11
3     2  to the right of    3
4     3   to the left of    9
5     3   to the left of   11
6     3   to the left of    2
7     3   to the left of    6
8     4  to the right of    0
9     6  to the right of    3
10    9  to the right of    3
11   10   to the left of    0
12   11  to the right of    0
13   11  to the right of    3