Is the window round or square?
The window is round.
    src        edge_attr  dst
0     0             near   20
1     0           behind   20
2     1       growing on    2
3     1   to the left of   15
4     2   to the left of   21
..  ...              ...  ...
73   21  to the right of    2
74   21   to the left of   13
75   21  to the right of   15
76   21           inside   17
77   23       growing in    0

[78 rows x 3 columns]