What item of furniture is brown?
The piece of furniture is a bookcase.
    src        edge_attr  dst
0     0  to the right of    1
1     1   to the left of    7
2     1   to the left of    4
3     1   to the left of   12
4     1   to the left of   11
5     1   to the left of    0
6     1   to the left of    3
7     1   to the left of    2
8     1   to the left of   13
9     2  to the right of    1
10    2            above    4
11    3  to the right of    1
12    4      standing on    0
13    4   to the left of    9
14    4  to the right of    1
15    4            above   12
16    4            below    2
17    5  to the right of    7
18    6        on top of    2
19    7   to the left of    5
20    7  to the right of    1
21    8  to the right of   12
22    8   to the left of    9
23    8       stacked on    0
24    9           beside    4
25    9  to the right of    4
26    9  to the right of    8
27    9  to the right of   10
28    9       sitting on    0
29   10   to the left of    9
30   11  to the right of    1
31   12   to the left of    8
32   12            below    4
33   12  to the right of    1
34   13  to the right of    1