Is there any sandwich above the white paper?
Yes, there is a sandwich above the paper.
    src        edge_attr  dst
0     1            under    6
1     1            below    6
2     2   to the left of    4
3     3   to the left of    4
4     4  to the right of    2
5     4  to the right of   13
6     4  to the right of    3
7     5  to the right of   15
8     5  to the right of    9
9     5  to the right of   16
10    6             with    5
11    6            above    1
12    6             with    4
13    9   to the left of    5
14    9   to the left of   16
15    9   to the left of   12
16   10   to the left of   14
17   12  to the right of    9
18   12  to the right of   15
19   13     covered with   11
20   13   to the left of    4
21   14  to the right of   10
22   15   to the left of   12
23   15   to the left of    5
24   15               in   14
25   15   to the left of   16
26   16   to the left of    5
27   16  to the right of    9
28   16  to the right of   15