What is on the foil?
The icing is on the foil.
    src        edge_attr  dst
0     1               on    9
1     1   to the left of   10
2     2   to the left of    7
3     2               on    9
4     2   to the left of    4
5     4               on    0
6     4  to the right of    2
7     4  to the right of    7
8     4  to the right of    6
9     6   to the left of   10
10    6               in    9
11    6          cutting    9
12    6   to the left of    4
13    7   to the left of    4
14    7  to the right of    2
15    8   to the left of   10
16    8               on    9
17    9               in    5
18   10  to the right of    1
19   10  to the right of    6
20   10  to the right of    8