Which kind of furniture is wooden?
The furniture is chairs.
    src        edge_attr  dst
0     0               of    1
1     0  to the right of   11
2     0  to the right of    6
3     0   to the left of    5
4     0   to the left of   10
5     0  to the right of    2
6     1   to the left of    5
7     1  to the right of    2
8     1  to the right of    6
9     1  to the right of   11
10    1   to the left of   10
11    2   to the left of    0
12    2  to the right of    4
13    2   to the left of    1
14    3   to the left of   14
15    3               of   15
16    4   to the left of    2
17    4   to the left of    6
18    5               of    8
19    5  to the right of    0
20    5   to the left of   10
21    5  to the right of   11
22    5  to the right of    1
23    6   to the left of    0
24    6   to the left of    1
25    6  to the right of    4
26    8          wearing   14
27    8        riding on   15
28    8          wearing    9
29    8   to the left of   10
30   10  to the right of    8
31   10  to the right of    1
32   10  to the right of    0
33   10  to the right of    5
34   11   to the left of    1
35   11   to the left of    0
36   11   to the left of    5
37   13   to the left of   14
38   14  to the right of   13
39   14  to the right of    3