Which place is it?
It is a walkway.
   src        edge_attr  dst
0    0   to the left of    1
1    1  to the right of    0
2    2  to the right of    5
3    2  to the right of    8
4    2  to the right of    6
5    5   to the left of    2
6    6   to the left of    2
7    6  to the right of    8
8    8   to the left of    6
9    8   to the left of    2