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