What is the device that is on top of the desk?
The device is a computer.
    src        edge_attr  dst
0     0        on top of   14
1     0  to the right of    5
2     0  to the right of   11
3     0  to the right of    8
4     1               on   14
5     3  to the right of    4
6     3  to the right of   10
7     3   to the left of    9
8     4  to the right of    7
9     4   to the left of    3
10    4   to the left of    9
11    5   to the left of    0
12    5  to the right of    8
13    7   to the left of    4
14    7   to the left of   10
15    7   to the left of   11
16    8               on   14
17    8               of    0
18    8   to the left of    0
19    8   to the left of    5
20    9  to the right of    4
21    9  to the right of    3
22    9  to the right of   10
23   10  to the right of    7
24   10          holding   11
25   10               at    0
26   10   to the left of    3
27   10   to the left of    9
28   11       sitting on   14
29   11   to the left of    0
30   11  to the right of    7
31   13  to the right of   14
32   14   to the left of   13