Is there any black mirror or bed?
No, there is a bed but it is white.
    src        edge_attr  dst
0     0  to the right of    6
1     1  to the right of   15
2     2  to the right of    6
3     5               on    7
4     6  to the right of   12
5     6  to the right of   11
6     6   to the left of   14
7     6   to the left of    0
8     6   to the left of    2
9     8               on    2
10   10  to the right of   12
11   10               on    6
12   11   to the left of    6
13   12               on    7
14   12   to the left of    6
15   12   to the left of   10
16   14  to the right of    6
17   15   to the left of    1