What is the milk in?
The milk is in the bottle.
     src        edge_attr  dst
0      0   to the left of   30
1      0               on   20
2      0   to the left of   28
3      2   to the left of    9
4      2   to the left of    6
..   ...              ...  ...
110   30  to the right of   17
111   30  to the right of   18
112   30  to the right of   24
113   30  to the right of   25
114   30  to the right of   23

[115 rows x 3 columns]