What device is to the left of the CD?
The device is a computer.
     src        edge_attr  dst
0      0   to the left of    7
1      0  to the right of   24
2      1  to the right of   25
3      1  to the right of    3
4      1  to the right of   15
..   ...              ...  ...
101   27   to the left of    6
102   27   to the left of   19
103   27   to the left of   24
104   27   to the left of    4
105   28   to the left of   21

[106 rows x 3 columns]