What are the devices to the left of the computer on the right?
The devices are monitors.
     src        edge_attr  dst
0      0   to the left of    2
1      0   to the left of    1
2      0  to the right of   13
3      0  to the right of    6
4      0  to the right of   30
..   ...              ...  ...
120   29  to the right of   19
121   30   to the left of    0
122   30   to the left of    2
123   30  to the right of    6
124   30  to the right of   13

[125 rows x 3 columns]