What is the vegetable on the pizza?
The vegetable is spinach.
    src        edge_attr  dst
0     2  to the right of   11
1     2  to the right of   17
2     2  to the right of   15
3     2   to the left of   12
4     3               on    9
5     3   to the left of    6
6     3  to the right of   14
7     3   to the left of    8
8     3   to the left of   12
9     4               on    9
10    4  to the right of   11
11    4  to the right of   15
12    4  to the right of   17
13    5               on    9
14    5  to the right of   17
15    6  to the right of    3
16    6  to the right of   14
17    6               on    9
18    7            under    9
19    8  to the right of   14
20    8  to the right of    3
21    8               on    9
22    9               on   10
23    9             with    8
24    9             with    3
25    9             with   17
26    9             with    6
27    9             with   11
28    9             with    4
29    9             with    5
30    9               on    7
31    9            above    7
32   11               on    9
33   11   to the left of   12
34   11   to the left of    4
35   11  to the right of   15
36   11  to the right of   17
37   11   to the left of    2
38   12  to the right of    2
39   12  to the right of   15
40   12  to the right of   11
41   12  to the right of   17
42   12  to the right of    3
43   13  to the right of   16
44   13  to the right of   17
45   14   to the left of    6
46   14   to the left of    8
47   14   to the left of    3
48   15   to the left of    2
49   15   to the left of    4
50   15   to the left of   11
51   15   to the left of   12
52   16   to the left of   13
53   17               on    9
54   17   to the left of   13
55   17   to the left of    2
56   17   to the left of    5
57   17   to the left of    4
58   17   to the left of   11
59   17   to the left of   12