What type of furniture is the dog on?
The dog is on the couch.
    src        edge_attr  dst
0     0   to the left of    9
1     0  to the right of   17
2     0               on    4
3     2   to the left of   12
4     2   to the left of    7
5     2               on   16
6     2  to the right of   13
7     2   to the left of    8
8     4  to the right of   16
9     4  to the right of   18
10    4  to the right of   10
11    5  to the right of   16
12    5  to the right of    6
13    6   to the left of    5
14    7  to the right of    8
15    7  to the right of   15
16    7  to the right of   16
17    7  to the right of    2
18    8   to the left of    7
19    8  to the right of    2
20    9  to the right of   16
21    9  to the right of    0
22    9  to the right of   18
23    9  to the right of   12
24    9  to the right of   10
25   10   to the left of    4
26   10   to the left of    9
27   11             near   16
28   11          next to   16
29   11             near   14
30   12   to the left of    9
31   12  to the right of    2
32   13   to the left of    2
33   14          next to   11
34   15   to the left of    7
35   16   to the left of    7
36   16   to the left of    9
37   16               on   19
38   16          wearing    2
39   16             near   11
40   16   to the left of    5
41   16   to the left of    4
42   17   to the left of    0
43   17   to the left of   18
44   18   to the left of    4
45   18  to the right of   17
46   18   to the left of    9