Which kind of furniture is made of wood?
The furniture is a chair.
    src        edge_attr  dst
0     0      in front of    3
1     0      in front of    2
2     0         covering    7
3     0   to the left of   11
4     0      in front of    9
5     0   to the left of    1
6     0   to the left of    8
7     0   to the left of    6
8     0   to the left of    4
9     1      in front of    8
10    1         covering    7
11    1      in front of    2
12    1  to the right of    9
13    1  to the right of    4
14    1  to the right of   11
15    1  to the right of    6
16    1  to the right of    5
17    1  to the right of    0
18    2           behind    1
19    2  to the right of    3
20    2  to the right of   10
21    2           behind    0
22    3           behind    0
23    3   to the left of    2
24    4   to the left of   11
25    4   to the left of    1
26    4  to the right of    0
27    5   to the left of    1
28    5   to the left of    8
29    6  to the right of    0
30    6   to the left of    1
31    6  to the right of   10
32    7             near   10
33    7       covered by    0
34    7       covered by    1
35    8  to the right of    9
36    8  to the right of    0
37    8  to the right of    5
38    9   to the left of    1
39    9   to the left of    8
40   10   to the left of    2
41   10             near    7
42   10   to the left of    6
43   11  to the right of    4
44   11   to the left of    1
45   11  to the right of    0