Are there any yellow mirrors or desks?
No, there is a desk but it is gray.
   src        edge_attr  dst
0    0   to the left of    3
1    1   to the left of    5
2    2  to the right of    7
3    3  to the right of    4
4    3  to the right of    0
5    4   to the left of    3
6    5  to the right of    1
7    7   to the left of    2