Which kind of fast food is it?
The food is a pizza.
   src        edge_attr  dst
0    3   to the left of   10
1    7  to the right of    8
2    8   to the left of    7
3    9   to the left of   10
4    9   to the left of   11
5   10  to the right of    9
6   10  to the right of    3
7   11  to the right of    9