Are there any donuts on the tray?
No, there is a pizza on the tray.
    src        edge_attr  dst
0     0   to the left of   11
1     1               on   16
2     1   to the left of   15
3     2   to the left of   15
4     2               on   16
5     3  to the right of    7
6     3  to the right of   10
7     4  to the right of    7
8     4  to the right of   10
9     5  to the right of   10
10    6  to the right of   12
11    6  to the right of   10
12    6               on    5
13    7   to the left of    4
14    7   to the left of    3
15    8               on   16
16    8   to the left of   15
17    9               on   14
18    9             with   11
19   10   to the left of    3
20   10   to the left of    4
21   10   to the left of    5
22   10   to the left of    6
23   10   to the left of   17
24   11               on    9
25   11  to the right of    0
26   12   to the left of    6
27   13   to the left of   15
28   15  to the right of    1
29   15  to the right of    8
30   15  to the right of    2
31   15  to the right of   13
32   17  to the right of   10
33   17               on   16