What are the onions on?
The onions are on the shelf.
    src        edge_attr  dst
0     0   to the left of    8
1     0   to the left of   20
2     0   to the left of   19
3     1   to the left of   10
4     1   to the left of    2
5     2  to the right of   19
6     2  to the right of   20
7     2  to the right of    7
8     2  to the right of    1
9     2  to the right of    5
10    2  to the right of   22
11    2  to the right of    8
12    2  to the right of   12
13    2  to the right of    9
14    3   to the left of   15
15    4   to the left of   19
16    4   to the left of    9
17    5  to the right of   11
18    5   to the left of    2
19    6  to the right of   22
20    6               on   10
21    7  to the right of   18
22    7   to the left of    2
23    7  to the right of   17
24    8  to the right of    0
25    8   to the left of    2
26    8  to the right of   16
27    8   to the left of   20
28    9   to the left of    2
29    9  to the right of    4
30   10  to the right of    1
31   10  to the right of   22
32   11               on   12
33   11   to the left of    5
34   12   to the left of    2
35   15  to the right of    3
36   16   to the left of    8
37   16   to the left of   20
38   17   to the left of    7
39   18   to the left of    7
40   19  to the right of    4
41   19   to the left of    2
42   19  to the right of    0
43   20  to the right of    8
44   20  to the right of   16
45   20  to the right of    0
46   20   to the left of    2
47   20  to the right of   21
48   21   to the left of   20
49   22   to the left of    6
50   22   to the left of   10
51   22   to the left of    2