Which material is the door made of, glass or stainless steel?
The door is made of glass.
    src        edge_attr  dst
0     0               on    3
1     0   to the left of   22
2     0  to the right of   17
3     0   to the left of   23
4     6  to the right of   11
5     6               on    7
6     6  to the right of   12
7     6               on   22
8     7  to the right of   10
9     8               on    9
10   10   to the left of    7
11   10               on   22
12   11   to the left of   12
13   11   to the left of    6
14   11               on   22
15   12  to the right of   11
16   12   to the left of    6
17   12               on   22
18   13   to the left of   21
19   13   to the left of   20
20   14               in   17
21   14  to the right of   22
22   17   to the left of    0
23   18  walking towards    4
24   18          wearing   15
25   18          wearing   16
26   18  walking towards    9
27   20  to the right of   13
28   21  to the right of   13
29   22  to the right of    0
30   22               on    2
31   22   to the left of   14
32   23               on   22
33   23  to the right of    0
34   24               on   22
35   25               on   22