Is the speaker to the left or to the right of the monitor?
The speaker is to the right of the monitor.
     src        edge_attr  dst
0      0  to the right of    9
1      0   to the left of   11
2      1   to the left of   13
3      2   to the left of   14
4      2   to the left of   15
..   ...              ...  ...
100   19   to the left of   12
101   19   to the left of    5
102   19   to the left of    2
103   19   to the left of   11
104   19   to the left of   17

[105 rows x 3 columns]