What device isn't open?
The device is a computer monitor.
    src        edge_attr  dst
0     0   to the left of   12
1     1            below    2
2     1            under    2
3     1   to the left of   12
4     2               on    8
5     2   to the left of    9
6     2            above    1
7     2   to the left of    3
8     2   to the left of    4
9     3  to the right of    2
10    3  to the right of   12
11    3     plugged into    6
12    4  to the right of   12
13    4  to the right of    2
14    4               on    8
15    5               on    6
16    5  to the right of    7
17    5   to the left of    9
18    5   to the left of   10
19    6  to the right of    7
20    7               on    8
21    7   to the left of    6
22    7   to the left of   10
23    7   to the left of    5
24    9  to the right of    2
25    9  to the right of   10
26    9  to the right of    5
27   10  to the right of    5
28   10   to the left of    9
29   10  to the right of    7
30   12   to the left of    3
31   12  to the right of    1
32   12  to the right of    0
33   12     plugged into    6
34   12   to the left of    4