What's the door made of?
The door is made of glass.
    src        edge_attr  dst
0     0  to the right of    8
1     0  to the right of    7
2     1   to the left of    8
3     1   to the left of    7
4     1           behind    1
5     1      in front of    1
6     2   to the left of    9
7     2   to the left of    4
8     2   to the left of   11
9     3   to the left of   11
10    3   to the left of    9
11    4  to the right of    2
12    4  to the right of    9
13    4  to the right of   12
14    5               on   12
15    5  to the right of    7
16    6       hanging on    0
17    7   to the left of    8
18    7  to the right of    1
19    7   to the left of    0
20    7   to the left of    5
21    8   to the left of    0
22    8  to the right of    1
23    8  to the right of    7
24    9      in front of   12
25    9            below   12
26    9             near   11
27    9  to the right of    2
28    9            under   12
29    9   to the left of    4
30    9   to the left of   11
31    9  to the right of    3
32    9               at   12
33   11  to the right of    2
34   11  to the right of    3
35   11  to the right of    9
36   11          next to    9
37   12           behind    9
38   12   to the left of    4