What type of furniture is the television on?
The television is on the couch.
    src        edge_attr  dst
0     0           behind    4
1     0   to the left of    2
2     0   to the left of    7
3     2  to the right of    3
4     2               on    4
5     2  to the right of    0
6     3               on    4
7     3   to the left of    2
8     3   to the left of    7
9     4      in front of    5
10    4               on    8
11    4             near    6
12    4      in front of    0
13    4       sitting on    1
14    5           behind    4
15    6          next to    4
16    6       sitting on    1
17    7               on    4
18    7  to the right of    3
19    7  to the right of    0