Is this a bed or a mirror?
This is a mirror.
   src        edge_attr  dst
0    0  to the right of    4
1    1   to the left of    5
2    3  to the right of    4
3    4   to the left of    5
4    4   to the left of    3
5    4   to the left of    0
6    5  to the right of    1
7    5  to the right of    4