What device is below the computer monitor?
The device is a computer mouse.
    src        edge_attr  dst
0     0            under    1
1     0            below    1
2     1            above    0
3     1   to the left of   12
4     1   to the left of   13
5     2  to the right of   11
6     2  to the right of    3
7     3   to the left of    5
8     3   to the left of    2
9     3   to the left of   14
10    5  to the right of    3
11    5  to the right of   11
12    6   to the left of   12
13    7   to the left of   12
14    8   to the left of   12
15   11   to the left of   14
16   11   to the left of   12
17   11   to the left of    5
18   11   to the left of    2
19   11          wearing    6
20   11          wearing    8
21   11          wearing    7
22   12  to the right of    8
23   12  to the right of   11
24   12  to the right of    1
25   12  to the right of    7
26   12  to the right of    6
27   12               on   13
28   13  to the right of    1
29   14  to the right of    3
30   14  to the right of   11