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