What is the bright device called?
The device is a screen.
    src        edge_attr  dst
0     0  to the right of   16
1     1  to the right of   13
2     1  to the right of   12
3     1      in front of   19
4     1        on top of    5
..  ...              ...  ...
58   21  to the right of    6
59   21  to the right of   14
60   21  to the right of   11
61   21  to the right of   17
62   21  to the right of   15

[63 rows x 3 columns]