Which kind of device is it?
The device is a keyboard.
    src        edge_attr  dst
0     0  to the right of    8
1     0  to the right of   11
2     0             near    9
3     0          next to    9
4     1   to the left of    6
5     1  to the right of    4
6     1  to the right of    2
7     2   to the left of    1
8     2   to the left of    4
9     3               on   11
10    3   to the left of    9
11    4   to the left of    6
12    4  to the right of    2
13    4   to the left of    1
14    5  to the right of   11
15    5   to the left of    6
16    6  to the right of    5
17    6  to the right of    4
18    6  to the right of    1
19    7   to the left of    9
20    8   to the left of    9
21    8   to the left of   10
22    8   to the left of    0
23    9  to the right of    7
24    9  to the right of    3
25    9  to the right of   11
26    9  to the right of    8
27    9             near    0
28   10  to the right of    8
29   11   to the left of    0
30   11   to the left of    5
31   11   to the left of    9