What do you think is the device on the platform?
The device is a monitor.
     src        edge_attr  dst
0      0               on    8
1      0   to the left of   23
2      0   to the left of   17
3      0  to the right of   25
4      0  to the right of    6
..   ...              ...  ...
262   45   to the left of    1
263   45   to the left of   38
264   45  to the right of   18
265   45  to the right of   20
266   45  to the right of   27

[267 rows x 3 columns]