Which place is it?
It is an airport.
     src        edge_attr  dst
0      1  to the right of   39
1      2   to the left of    4
2      2   to the left of   25
3      2   to the left of    9
4      3   to the left of    8
..   ...              ...  ...
114   37   to the left of   32
115   37   to the left of   33
116   37  to the right of    4
117   37   to the left of    6
118   39   to the left of    1

[119 rows x 3 columns]