Which kind of furniture is wooden?
The furniture is a bookshelf.
     src        edge_attr  dst
0      0  to the right of   23
1      0  to the right of   37
2      0  to the right of   19
3      0  to the right of   41
4      0  to the right of   39
..   ...              ...  ...
159   39   to the left of   26
160   41      filled with   39
161   41   to the left of   25
162   41   to the left of   26
163   41   to the left of    0

[164 rows x 3 columns]