What is the vegetable inside the sandwich in front of the plate called?
The vegetable is an onion.
    src        edge_attr  dst
0     0               on   10
1     0   to the left of   12
2     1               in    8
3     1           inside    8
4     2   to the left of   13
5     2           inside    8
6     2               in    8
7     3  to the right of    4
8     3           inside    9
9     4  to the right of    8
10    4           inside    9
11    4   to the left of    3
12    6           inside    8
13    6   to the left of   13
14    7           inside    8
15    8      in front of   11
16    8      in front of   10
17    8      filled with    2
18    8               on    5
19    8   to the left of    4
20    8   to the left of    9
21    8   to the left of   14
22    8   to the left of   16
23    9  to the right of    8
24    9  to the right of   11
25    9               on    5
26    9  to the right of   10
27    9      filled with   15
28   10           behind    8
29   10   to the left of    9
30   10   to the left of   12
31   10            above   12
32   11               on   10
33   11   to the left of   12
34   11           behind    8
35   11   to the left of    9
36   12          beneath   10
37   12  to the right of    0
38   12  to the right of   10
39   12  to the right of   11
40   13           inside    8
41   13  to the right of    2
42   13               in    8
43   13  to the right of    6
44   14           inside    9
45   14  to the right of    8
46   15           inside    9
47   15               in    9
48   16           inside    9
49   16  to the right of    8