Which kind of device is in front of the window?
The device is a monitor.
    src        edge_attr  dst
0     1   to the left of    6
1     1   to the left of    3
2     2        on top of   14
3     2  to the right of    6
4     3  to the right of    5
..  ...              ...  ...
56   15  to the right of    9
57   15  to the right of    5
58   15  to the right of   10
59   16  to the right of    6
60   16  to the right of   14

[61 rows x 3 columns]