Is the cheese of the salad to the left or to the right of the lettuce on the right of the image?
The cheese is to the left of the lettuce.
   src        edge_attr  dst
0    1               on    4
1    2   to the left of    8
2    2   to the left of    5
3    5  to the right of    2
4    8  to the right of    2
5    9           inside    7