Is this a couch or a bed?
This is a couch.
   src        edge_attr  dst
0    1  to the right of    4
1    2   to the left of    6
2    4   to the left of    1
3    5   to the left of    9
4    6  to the right of    7
5    6  to the right of    2
6    7   to the left of    6
7    9  to the right of    5