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