What is on the crust?
The cheese is on the crust.
    src        edge_attr  dst
0     0  to the right of    4
1     1               on    5
2     1  to the right of    6
3     3               on    6
4     3               on    4
5     3  to the right of    7
6     4   to the left of    0
7     6             with    7
8     6             with    3
9     6               on    5
10    6   to the left of    1
11    7               on    6
12    7   to the left of    3