Do you see a cup?
No, there are no cups.
     src        edge_attr  dst
0      0  to the right of   31
1      1   to the left of   19
2      1   to the left of   15
3      1  to the right of   33
4      1   to the left of   31
..   ...              ...  ...
155   37  to the right of   21
156   37  to the right of   15
157   37  to the right of   31
158   37  to the right of   30
159   39   to the left of   21

[160 rows x 3 columns]