How thick is the pizza with the peppers?
The pizza is thin.
    src        edge_attr  dst
0     0             with    7
1     0             with    2
2     0             with    1
3     1               on    0
4     2               on    0
5     2  to the right of    4
6     4   to the left of    2
7     4               on    3
8     4   to the left of    7
9     7  to the right of    4
10    7               on    0