Do you see any donut on the plate on the left?
No, there are vegetables on the plate.
   src        edge_attr  dst
0    0   to the left of    1
1    0  to the right of    6
2    0   to the left of   10
3    1  to the right of    0
4    5               on    4
5    6   to the left of    0
6    7   to the left of    8
7    8  to the right of    7
8   10  to the right of    0