What is the item of furniture that is brown?
The piece of furniture is a couch.
    src        edge_attr  dst
0     0   to the left of   10
1     0  to the right of    1
2     1   to the left of    2
3     1   to the left of    3
4     1  to the right of    9
5     1               on    5
6     1   to the left of    6
7     1   to the left of    0
8     1   to the left of   10
9     1   to the left of    7
10    2  to the right of    1
11    2   to the left of   10
12    3  to the right of    1
13    3   to the left of   10
14    4           behind    5
15    4   to the left of    8
16    5      in front of    4
17    6  to the right of    1
18    7  to the right of    1
19    7   to the left of   10
20    7               on    5
21    8  to the right of    4
22    9   to the left of    1
23   10  to the right of    3
24   10  to the right of    7
25   10  to the right of    0
26   10  to the right of    1
27   10  to the right of    2