Are there either tables or couches that are gray?
Yes, the table is gray.
    src        edge_attr  dst
0     0   on the side of    7
1     0   to the left of    4
2     1               in    7
3     1   to the left of    4
4     2   to the left of    8
5     2   to the left of   10
6     2   to the left of    5
7     2   to the left of    3
8     2             near    5
9     2   to the left of    6
10    3  to the right of    2
11    4  to the right of    0
12    4  to the right of    1
13    4  to the right of    7
14    5          wearing    6
15    5           facing    7
16    5             near    2
17    5      standing on    4
18    5  to the right of    2
19    5  to the right of    7
20    6  to the right of    2
21    6               on    5
22    7               on    2
23    7               of    1
24    7   to the left of    4
25    7   to the left of    5
26    7   to the left of    8
27    7   to the left of    9
28    8               of    5
29    8  to the right of    7
30    8  to the right of    2
31    9  to the right of    7
32   10  to the right of    2
33   10               of    5