Which place is it?
It is a city.
    src        edge_attr  dst
0     1  to the right of    8
1     8   to the left of   13
2     8  to the right of    9
3     8   to the left of    1
4     9   to the left of    8
5    10   to the left of   12
6    10  to the right of   11
7    11   to the left of   12
8    11   to the left of   10
9    12  to the right of   10
10   12  to the right of   11
11   13  to the right of    8