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