What kind of food is to the left of the sandwich in the middle?
The food is meat.
     src        edge_attr  dst
0      0   to the left of   10
1      0  to the right of    5
2      0  to the right of   28
3      0  to the right of   12
4      1  to the right of   12
..   ...              ...  ...
111   28   to the left of   10
112   28   to the left of    0
113   29   to the left of   25
114   29   to the left of   23
115   29  to the right of   14

[116 rows x 3 columns]