Do you see a fork to the left of the food that is in the center?
No, there is a lemon to the left of the pizza.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of    1
2     1  to the right of    6
3     1  to the right of    4
4     1  to the right of    0
5     3   to the left of    8
6     4               on    1
7     4   to the left of    7
8     4   to the left of    1
9     4               on    8
10    6   to the left of    7
11    6   to the left of    1
12    7               on    1
13    7  to the right of    4
14    7  to the right of    6
15    7  to the right of    0
16    8               on    1
17    8  to the right of    3
18    9               in    8