Are there any glass windows or doors?
Yes, there are glass doors.
    src        edge_attr  dst
0     0   to the left of    3
1     0   to the left of    4
2     0   to the left of    1
3     0  to the right of   13
4     0  to the right of    8
..  ...              ...  ...
62   21  to the right of   13
63   21   to the left of   14
64   21  to the right of   19
65   22   to the left of   16
66   22  to the right of   12

[67 rows x 3 columns]