What is the item of furniture that the computer to the right of the light bulb is sitting on top of?
The piece of furniture is a desk.
    src          edge_attr  dst
0     0     to the left of    5
1     0     to the left of    2
2     0    to the right of    3
3     1     to the left of    2
4     1     to the left of    5
5     2    to the right of    1
6     2    to the right of    0
7     2    to the right of    3
8     3     to the left of    2
9     3     to the left of    0
10    3     to the left of    5
11    4    to the right of   11
12    4     to the left of    8
13    5    to the right of    1
14    5     to the left of   13
15    5    to the right of    0
16    5  sitting on top of    9
17    5    to the right of    3
18    6    to the right of   11
19    6     to the left of    8
20    7     to the left of   15
21    7     to the left of   14
22    8    to the right of    4
23    8    to the right of    6
24    8    to the right of   11
25    9     to the left of   13
26   10     to the left of   11
27   11     to the left of    4
28   11     to the left of    6
29   11    to the right of   10
30   11     to the left of    8
31   13    to the right of   14
32   13    to the right of    5
33   13    to the right of    9
34   13    to the right of   15
35   14    to the right of    7
36   14     to the left of   13
37   15                 on   14
38   15     to the left of   13
39   15    to the right of    7