What device is on the desk?
The device is a phone.
    src        edge_attr  dst
0     1               on    2
1     1  to the right of   12
2     1  to the right of    3
3     3               on    2
4     3   to the left of    1
..  ...              ...  ...
59   24  to the right of   15
60   24   to the left of    4
61   25   to the left of   12
62   25               on    2
63   26               on   16

[64 rows x 3 columns]