Which place is it?
It is a lake.
    src        edge_attr  dst
0     0  to the right of   12
1     0   to the left of    7
2     0   to the left of   14
3     1  to the right of   20
4     1  to the right of   17
..  ...              ...  ...
72   20  to the right of   14
73   20  to the right of   17
74   22   to the left of   10
75   23  to the right of   13
76   23   to the left of   15

[77 rows x 3 columns]