What device is on?
The device is a computer.
    src        edge_attr  dst
0     0   to the left of    5
1     0               on    1
2     1   to the left of   11
3     1   to the left of    8
4     2               in    7
5     3   to the left of    5
6     4   to the left of    9
7     5  to the right of    3
8     5  to the right of    0
9     6   to the left of    9
10    8  to the right of    1
11    9  to the right of    4
12    9  to the right of    6
13   11  to the right of    1