Are there both buses and mirrors?
Yes, there are both a bus and a mirror.
    src        edge_attr  dst
0     0  to the right of   12
1     1   to the left of    3
2     2   to the left of   12
3     2               of    3
4     2   to the left of    6
5     2  to the right of   11
6     3   to the left of    5
7     3  to the right of    1
8     3  to the right of   14
9     3  to the right of   10
10    4             near   11
11    5  to the right of    3
12    5  to the right of    8
13    5  to the right of   13
14    6  to the right of    2
15    6  to the right of   12
16    8  to the right of   12
17    8   to the left of    5
18    8  to the right of    9
19    9   to the left of    8
20   10   to the left of    3
21   10   to the left of   12
22   11             near    4
23   11   to the left of   12
24   11   to the left of    2
25   12   to the left of    6
26   12   to the left of    0
27   12  to the right of    2
28   12  to the right of   11
29   12   to the left of    8
30   12  to the right of   10
31   12   to the left of   13
32   12  to the right of   14
33   13   to the left of    5
34   13  to the right of   12
35   14   to the left of   12
36   14   to the left of    3