Do you see any donut in the box?
Yes, there is a donut in the box.
     src        edge_attr  dst
0      0  to the right of   36
1      0  to the right of   16
2      1   to the left of   15
3      1  to the right of   12
4      2   to the left of   14
..   ...              ...  ...
106   35  to the right of    5
107   36  to the right of    4
108   36   to the left of    0
109   36  to the right of   19
110   36  to the right of   16

[111 rows x 3 columns]