What kind of furniture is dark?
The furniture is a bed.
    src        edge_attr  dst
0     0   to the left of    5
1     1  to the right of    2
2     1  to the right of    7
3     1  to the right of    6
4     2  to the right of    3
5     2   to the left of    1
6     3   to the left of    2
7     3   to the left of    7
8     3   to the left of    6
9     3   to the left of    9
10    5  to the right of    8
11    5  to the right of    0
12    6   to the left of    7
13    6   to the left of    1
14    6  to the right of    3
15    7   to the left of    1
16    7  to the right of    6
17    7  to the right of    3
18    8   to the left of    5
19    9  to the right of    3