Are the papers white and wet?
Yes, the papers are white and wet.
    src        edge_attr  dst
0     1   to the left of   16
1     1   to the left of   10
2     2               in   11
3     2   to the left of   12
4     2   to the left of    6
5     6  to the right of    2
6     6  to the right of    9
7     9   to the left of   12
8     9   to the left of    6
9    10  to the right of    1
10   12  to the right of    2
11   12   to the left of   15
12   12  to the right of    9
13   15  to the right of   12
14   15               on    3
15   16  to the right of    1