What is the device that is to the left of the monitor?
The device is a computer.
    src        edge_attr  dst
0     0   to the left of   15
1     0   to the left of    8
2     1  to the right of    5
3     1   to the left of   18
4     2  to the right of    4
5     3               on    6
6     3   to the left of   15
7     3   to the left of    8
8     4   to the left of    2
9     4      in front of   12
10    4  to the right of   17
11    4   to the left of    7
12    5           behind    8
13    5  to the right of   16
14    5   to the left of    1
15    6   to the left of   14
16    7  to the right of    4
17    8      in front of    5
18    8  to the right of    0
19    8  to the right of    3
20    8   to the left of    9
21    8   to the left of   10
22    8   to the left of   12
23    9  to the right of    8
24   10  to the right of    8
25   10   to the left of   14
26   10  to the right of   15
27   12   to the left of   14
28   12  to the right of    8
29   12           behind    4
30   12  to the right of   15
31   14  to the right of   12
32   14  to the right of    6
33   14  to the right of   10
34   15   to the left of   10
35   15  to the right of    3
36   15  to the right of    0
37   15   to the left of   12
38   16   to the left of    5
39   17   to the left of    4
40   18  to the right of    1