Which kind of device is it?
The device is a keyboard.
    src        edge_attr  dst
0     0  to the right of    2
1     1  to the right of    2
2     1   to the left of    4
3     2   to the left of    0
4     2   to the left of    1
5     2   to the left of    5
6     2   to the left of    4
7     3   to the left of    5
8     4  to the right of    2
9     4  to the right of    1
10    5  to the right of    2
11    5  to the right of    3