What is on the pizza?
The spinach is on the pizza.
    src        edge_attr  dst
0     0  to the right of   13
1     0  to the right of   12
2     0  to the right of   16
3     0  to the right of    1
4     0  to the right of    2
..  ...              ...  ...
92   20  to the right of    6
93   20  to the right of   21
94   21   to the left of   20
95   21   to the left of    6
96   21  to the right of    4

[97 rows x 3 columns]