What item of furniture is brown?
The piece of furniture is a table.
   src        edge_attr  dst
0    0        on top of    5
1    1               on    0
2    1        on top of    0
3    1   to the left of    4
4    2        on top of    0
5    2               on    0
6    4  to the right of    1
7    6        on top of    0