What device is above the device on the table?
The device is a monitor.
    src        edge_attr  dst
0     0  to the right of    2
1     1   to the left of    5
2     2   to the left of    0
3     2   to the left of    5
4     2            above   10
5     3       hanging on    1
6     4   to the left of    6
7     4   to the left of   12
8     4  to the right of    9
9     4            above   11
10    5   to the left of   12
11    5  to the right of    2
12    5  to the right of    1
13    5   to the left of    6
14    6  to the right of    4
15    6  to the right of    5
16    8  to the right of    9
17    8   to the left of   12
18    9   to the left of    4
19    9   to the left of    8
20    9   to the left of   11
21   10            under    2
22   10               on    4
23   11  to the right of    9
24   12               on   12
25   12  to the right of    8
26   12  to the right of    5
27   12  to the right of    4