Which kind of furniture is wooden?
The furniture is a chair.
   src        edge_attr  dst
0    0               on    6
1    0  to the right of    1
2    1   to the left of    0
3    1  to the right of    5
4    5   to the left of    6
5    5   to the left of    1
6    6  to the right of    8
7    6  to the right of    5
8    8   to the left of    6