Which side is the silver device on?
The computer is on the left of the image.
     src        edge_attr  dst
0      0   to the left of   17
1      0   to the left of   12
2      1   to the left of    3
3      2  to the right of    8
4      2   to the left of   20
..   ...              ...  ...
114   30   to the left of   15
115   30   to the left of   27
116   30   to the left of    8
117   30   to the left of    2
118   30   to the left of    5

[119 rows x 3 columns]