Are any windows visible there?
Yes, there are windows.
    src        edge_attr  dst
0     0   to the left of   16
1     0   to the left of    7
2     1               on   17
3     1         carrying   13
4     3   to the left of   14
..  ...              ...  ...
56   13   to the left of    6
57   14  to the right of    3
58   16  to the right of    0
59   16  to the right of    3
60   18   to the left of    5

[61 rows x 3 columns]