Which kind of furniture is brown?
The furniture is a chair.
    src        edge_attr  dst
0     1        on top of    0
1     1   to the left of    5
2     1   to the left of    4
3     3  to the right of    7
4     4  to the right of    1
5     4   to the left of    5
6     5  to the right of    1
7     5  to the right of    4
8     6        on top of    8
9     6       painted on    8
10    7               of    7
11    7   to the left of    3
12    7        on top of    7
13    7  to the right of    9
14    9   to the left of    7