Are there either small windows or doors?
No, there is a window but it is large.
    src        edge_attr  dst
0     0   to the left of   11
1     0  to the right of    3
2     0  to the right of   25
3     0  to the right of   21
4     1   to the left of   13
..  ...              ...  ...
88   25   to the left of   22
89   25   to the left of    0
90   25   to the left of   23
91   25   to the left of   24
92   26  to the right of   17

[93 rows x 3 columns]