What sauce is it?
The sauce is tomato sauce.
    src        edge_attr  dst
0     0  to the right of    2
1     0  to the right of   15
2     0  to the right of    4
3     2  to the right of   13
4     2  to the right of   19
5     2   to the left of    0
6     2  to the right of    6
7     3   to the left of   17
8     4   to the left of    0
9     5  to the right of   11
10    6   to the left of    2
11    7               on   15
12    7  to the right of   13
13   11   to the left of    5
14   12   to the left of   17
15   13   to the left of    2
16   13   to the left of   15
17   13   to the left of    7
18   13   to the left of   19
19   15  to the right of   13
20   15   to the left of    0
21   17  to the right of   12
22   17  to the right of    3
23   19   to the left of    2
24   19  to the right of   13