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