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