Do you see any red napkins or flags?
Yes, there is a red flag.
     src        edge_attr  dst
0      0  to the right of   26
1      0  to the right of   19
2      0  to the right of   29
3      0  to the right of   28
4      0  to the right of    2
..   ...              ...  ...
240   38               on   32
241   38           behind   14
242   39   to the left of   34
243   39   to the left of   35
244   39   to the left of    7

[245 rows x 3 columns]