Are there either cups or bottles?
Yes, there is a cup.
    src        edge_attr  dst
0     0   to the left of   15
1     0   to the left of    2
2     1  to the right of   22
3     1   to the left of    2
4     1  to the right of    5
..  ...              ...  ...
87   25   to the left of    4
88   26   to the left of   12
89   26   to the left of    2
90   26   to the left of   15
91   27   to the left of   15

[92 rows x 3 columns]