Which kind of furniture is brown?
The furniture is a table.
    src        edge_attr  dst
0     0  to the right of   19
1     0   to the left of    8
2     0  to the right of   15
3     1   to the left of    4
4     1   to the left of    2
5     2  to the right of    4
6     2  to the right of    1
7     2  to the right of    5
8     3  to the right of   11
9     3  to the right of   17
10    4   to the left of    2
11    4  to the right of    1
12    4               on    3
13    5   to the left of    2
14    5               on    3
15    6  to the right of   15
16    6  to the right of   19
17    6   to the left of    8
18    8  to the right of   19
19    8  to the right of    0
20    8  to the right of    6
21   10  to the right of   19
22   10  to the right of   14
23   11           beside   12
24   11   to the left of    3
25   13   to the left of   14
26   13   to the left of   19
27   14   to the left of   10
28   14  to the right of   13
29   14  to the right of   19
30   15   to the left of    6
31   15  to the right of   16
32   15   to the left of   19
33   15   to the left of    0
34   16   to the left of   15
35   16   to the left of   19
36   17   to the left of    3
37   18               on    9
38   19   to the left of    0
39   19   to the left of   10
40   19  to the right of   13
41   19   to the left of   14
42   19   to the left of    8
43   19  to the right of   16
44   19   to the left of    6
45   19  to the right of   15