Which side of the picture is the cheese on?
The cheese is on the left of the image.
    src        edge_attr  dst
0     1  to the right of    8
1     2   to the left of   12
2     3   to the left of    4
3     3   to the left of   13
4     3   to the left of   15
5     3   to the left of   14
6     4               on   15
7     4  to the right of    3
8     5  to the right of    8
9     5  to the right of    6
10    6   to the left of    5
11    7  to the right of   13
12    8   to the left of    5
13    8   to the left of    1
14   12  to the right of    2
15   13  to the right of    3
16   13               on    2
17   13   to the left of    7
18   14  to the right of    3
19   15               on    2
20   15               on   15
21   15             with   15
22   15  to the right of    3