Is there large window or door?
No, there are windows but they are small.
    src        edge_attr  dst
0     0               of    3
1     0   to the left of    9
2     0   to the left of   18
3     1   to the left of   18
4     1   to the left of    7
5     2   to the left of   16
6     3   to the left of   11
7     5   to the left of   12
8     6   to the left of    7
9     7  to the right of    1
10    7  to the right of    6
11    7  to the right of    8
12    7  to the right of   15
13    8   to the left of    7
14    9  to the right of    0
15   10  to the right of   18
16   10  to the right of   13
17   11  to the right of    3
18   11  to the right of   14
19   12  to the right of    5
20   13   to the left of   10
21   13   to the left of   18
22   14   to the left of   11
23   15   to the left of    7
24   16   to the left of   17
25   16  to the right of    2
26   17               of    3
27   17  to the right of   16
28   18  to the right of    0
29   18  to the right of    1
30   18   to the left of   10
31   18  to the right of   13