Which kind of device is not off?
The device is a keyboard.
    src        edge_attr  dst
0     0  to the right of   14
1     0  to the right of   11
2     1           behind   14
3     1   to the left of    5
4     1   to the left of   15
..  ...              ...  ...
57   14   to the left of    3
58   15  to the right of    5
59   15               of   14
60   15   to the left of    6
61   15  to the right of    1

[62 rows x 3 columns]