How big is the window of the door?
The window is small.
    src        edge_attr  dst
0     0               of    6
1     1  to the right of    4
2     1  to the right of    5
3     2            below    6
4     3            above    6
5     3   to the left of    9
6     4               of    5
7     4   to the left of    1
8     5               of    6
9     5  to the right of    7
10    5   to the left of    1
11    6            below    9
12    6            under    3
13    6            below    3
14    7   to the left of    5
15    7               of    6
16    9  to the right of    3