What is in the paper?
The butter is in the paper.
    src        edge_attr  dst
0     2               on    9
1     2  to the right of   12
2     2               in    9
3     2               on    1
4     3               on    1
5     3  to the right of   13
6     3  to the right of    5
7     4   to the left of    9
8     5   to the left of    3
9     5               in   13
10    5               on    1
11    6  to the right of   11
12    6  to the right of    7
13    6  to the right of   10
14    6               on    1
15    7   to the left of    6
16    7               on    1
17    8               on   10
18    8   to the left of   11
19    9  to the right of   12
20    9  to the right of    4
21   10   to the left of    6
22   11               on   10
23   11   to the left of    6
24   11  to the right of    8
25   12               on    0
26   12               on    1
27   12   to the left of    9
28   12   to the left of    2
29   13   to the left of    3