What is the onion on?
The onion is on the table.
    src        edge_attr  dst
0     0               on    5
1     0   to the left of   13
2     0  to the right of    6
3     1  to the right of   13
4     1               in    3
5     2   to the left of   11
6     2               in    3
7     3  to the right of   13
8     4   to the left of    8
9     6               on    5
10    6   to the left of    0
11    7               on    5
12    8               in    3
13    8  to the right of    4
14    9               in    3
15    9  to the right of   13
16   11  to the right of   13
17   11               in    3
18   11  to the right of    2
19   13  to the right of    0
20   13               on    5
21   13   to the left of    1
22   13   to the left of    3
23   13   to the left of   11
24   13   to the left of    9