What is the pizza on?
The pizza is on the dish.
    src        edge_attr  dst
0     1   to the left of    5
1     2             with   11
2     2             with   10
3     2               on    3
4     2             with    6
5     4   to the left of    5
6     5  to the right of    4
7     5  to the right of    1
8     5  to the right of    8
9     6               on    2
10    6   to the left of   11
11    8   to the left of    5
12   10               on    2
13   11  to the right of    6
14   11               on    2