Is there any mirror in the scene?
No, there are no mirrors.
    src        edge_attr  dst
0     0   to the left of   13
1     0   to the left of   16
2     0   to the left of    2
3     0  to the right of    4
4     0  to the right of    8
5     0  to the right of    6
6     0  to the right of    3
7     0   to the left of   12
8     0   to the left of   17
9     0  to the right of    5
10    0  to the right of    1
11    1   to the left of    0
12    1       hanging on    5
13    1   to the left of   11
14    1   to the left of   18
15    2  to the right of    0
16    3   to the left of   18
17    3   to the left of   11
18    3   to the left of    0
19    4   to the left of    0
20    4               on   10
21    4   to the left of   18
22    5   to the left of   14
23    5   to the left of   11
24    5   to the left of    0
25    5   to the left of   18
26    6   to the left of   11
27    6   to the left of   18
28    6   to the left of    0
29    7   to the left of   16
30    8   to the left of   11
31    8   to the left of   18
32    8   to the left of    0
33    8   to the left of   14
34    9   to the left of   17
35    9               in   14
36   10   to the left of   17
37   11  to the right of    8
38   11  to the right of    3
39   11  to the right of    6
40   11  to the right of    1
41   11  to the right of    5
42   12  to the right of    0
43   13  to the right of    0
44   14  to the right of    8
45   14  to the right of    5
46   16  to the right of    7
47   16  to the right of    0
48   17  to the right of   10
49   17  to the right of    9
50   17  to the right of    0
51   18  to the right of    3
52   18  to the right of    6
53   18  to the right of    8
54   18  to the right of    1
55   18  to the right of    4
56   18  to the right of    5