What type of device is to the left of the cigarette?
The device is a cell phone.
    src        edge_attr  dst
0     0   to the left of    8
1     0  to the right of   10
2     0  to the right of    9
3     1   to the left of    4
4     1   to the left of    2
..  ...              ...  ...
61   11   to the left of    9
62   11   to the left of    7
63   12   to the left of    8
64   12  to the right of    9
65   12  to the right of   10

[66 rows x 3 columns]