How is the silver device called?
The device is a computer.
    src        edge_attr  dst
0     0  to the right of   15
1     0  to the right of    2
2     0  to the right of   19
3     1  to the right of   19
4     1  to the right of   17
..  ...              ...  ...
67   21  to the right of   12
68   21   to the left of    8
69   21  to the right of   13
70   21  to the right of   20
71   21  to the right of   19

[72 rows x 3 columns]