Which kind of furniture is black?
The furniture is a desk.
    src        edge_attr  dst
0     1  to the right of   10
1     1   to the left of    9
2     1   to the left of    3
3     1   to the left of    7
4     2  to the right of   10
5     3  to the right of    6
6     3  to the right of    1
7     3  to the right of   11
8     4  to the right of    6
9     4  to the right of   10
10    5  to the right of   10
11    6   to the left of    9
12    6   to the left of    4
13    6   to the left of    3
14    6       sitting in   10
15    6   to the left of    7
16    7  to the right of    6
17    7  to the right of    1
18    8  to the right of   10
19    9  to the right of    1
20    9  to the right of    6
21   10   to the left of    5
22   10   to the left of    8
23   10   to the left of   12
24   10   to the left of    1
25   10   to the left of    2
26   10   to the left of    4
27   11   to the left of    3
28   12  to the right of   10