Which place is it?
It is a train station.
    src        edge_attr  dst
0     0               on   10
1     0   to the left of   12
2     0  to the right of    7
3     0   to the left of    6
4     1  to the right of    2
..  ...              ...  ...
71   16   to the left of    6
72   17   to the left of    8
73   17   to the left of   11
74   17   to the left of    7
75   18  to the right of    7

[76 rows x 3 columns]