What kind of device is right of the lamp?
The device is a monitor.
     src        edge_attr  dst
0      0   to the left of    6
1      0  to the right of   19
2      0   to the left of    8
3      0   to the left of   25
4      0  to the right of   28
..   ...              ...  ...
159   33   to the left of    0
160   33   to the left of   18
161   33   to the left of   31
162   34   to the left of   31
163   34   to the left of    6

[164 rows x 3 columns]