What kind of device is off?
The device is a laptop.
    src        edge_attr  dst
0     0   to the left of    1
1     0   to the left of    5
2     1   to the left of    2
3     1  to the right of    0
4     1  to the right of    3
5     2  to the right of    1
6     2  to the right of    5
7     3   to the left of    1
8     3   to the left of    8
9     3   to the left of    6
10    3   to the left of    7
11    3               on    4
12    3   to the left of    5
13    5  to the right of    0
14    5               on    4
15    5  to the right of    3
16    5   to the left of    2
17    6  to the right of    3
18    7               on    4
19    7   to the left of    8
20    7  to the right of    3
21    8  to the right of    3
22    8               on    7
23    8               on    4
24    8  to the right of    7