What is located on top of the pizza?
The peppers are on top of the pizza.
    src        edge_attr  dst
0     1   to the left of    6
1     1   to the left of    5
2     2   to the left of   14
3     2   to the left of    8
4     2   to the left of    7
..  ...              ...  ...
71   18  to the right of   15
72   19          next to   15
73   19  to the right of   15
74   20  to the right of    6
75   20          next to   15

[76 rows x 3 columns]