Are the green vegetables to the left of a bread?
Yes, the vegetables are to the left of a bread.
    src        edge_attr  dst
0     0   to the left of   20
1     0   to the left of   10
2     0  to the right of    7
3     0   to the left of   13
4     0  to the right of   12
..  ...              ...  ...
74   20           inside   14
75   21   to the left of    8
76   21   to the left of    9
77   21   to the left of   15
78   21   to the left of   18

[79 rows x 3 columns]