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