What is the vegetable on top of the uncooked food called?
The vegetable is an onion.
     src        edge_attr  dst
0      0        on top of   35
1      0   to the left of    8
2      0  to the right of    1
3      0  to the right of   22
4      1   to the left of    8
..   ...              ...  ...
170   41   to the left of   40
171   42               on   35
172   42   to the left of   25
173   42        on top of   35
174   42   to the left of   29

[175 rows x 3 columns]