What is on the cheese pizza?
The topping is on the pizza.
    src        edge_attr  dst
0     0  to the right of    4
1     0  to the right of   15
2     0  to the right of   11
3     0  to the right of    3
4     0  to the right of    9
..  ...              ...  ...
78   19  to the right of   11
79   19   to the left of    8
80   20  to the right of   10
81   20   to the left of    8
82   20  to the right of   14

[83 rows x 3 columns]