What device is gray?
The device is a television.
    src        edge_attr  dst
0     0   to the left of   10
1     0   to the left of    8
2     0   to the left of   11
3     0   to the left of    3
4     0   to the left of    1
..  ...              ...  ...
85   14   to the left of   11
86   15  to the right of    5
87   15  to the right of    0
88   16   to the left of   11
89   16  to the right of    5

[90 rows x 3 columns]