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