What is the floor made of?
The floor is made of wood.
    src        edge_attr  dst
0     0           behind   18
1     1           behind   18
2     1  to the right of    3
3     2            above   18
4     2  to the right of   19
5     2  to the right of   17
6     3   to the left of   13
7     3   to the left of    1
8     5               in    4
9     5   to the left of   10
10    5  to the right of   14
11    5  to the right of   15
12    6   to the left of   18
13    6   to the left of   12
14    7  to the right of   12
15    8   to the left of   20
16    9               in    4
17    9  to the right of   14
18    9  to the right of   15
19    9   to the left of   10
20   10  to the right of   13
21   10  to the right of   14
22   10  to the right of    9
23   10  to the right of    5
24   10  to the right of   11
25   11               in    4
26   11   to the left of   10
27   11  to the right of   15
28   11  to the right of   14
29   12       hanging on   18
30   12   to the left of    7
31   12  to the right of    6
32   13   to the left of   10
33   13  to the right of    3
34   14  to the right of   15
35   14   to the left of    9
36   14   to the left of   10
37   14   to the left of    5
38   14   to the left of   11
39   14               in    4
40   15   to the left of    9
41   15   to the left of    5
42   15   to the left of   11
43   15   to the left of   14
44   15               in    4
45   17  to the right of   19
46   17   to the left of    2
47   18            below    2
48   18  to the right of    6
49   18      in front of    1
50   18      in front of    0
51   19   to the left of    2
52   19   to the left of   17
53   20  to the right of    8