What is the device to the left of the placemat on the desk?
The device is a computer.
    src        edge_attr  dst
0     0   to the left of   12
1     1   to the left of   13
2     1   to the left of    7
3     2               in    9
4     2               in    5
..  ...              ...  ...
72   19   to the left of    8
73   20   to the left of    9
74   20   to the left of    5
75   20   to the left of    2
76   21  to the right of   14

[77 rows x 3 columns]