Is the rope on a boat?
No, the rope is on a surfboard.
    src        edge_attr  dst
0     1  to the right of   15
1     2   to the left of   11
2     2               on    8
3     2   to the left of   14
4     4   to the left of    8
5     5   to the left of   10
6     6  to the right of   12
7     6  to the right of   11
8     6  to the right of   13
9     7   to the left of   12
10    8  to the right of    4
11   10               on    8
12   10  to the right of    5
13   10  to the right of   15
14   11  to the right of    2
15   11   to the left of    6
16   12  to the right of    7
17   12   to the left of    6
18   13   to the left of    6
19   14  to the right of    2
20   15   to the left of   10
21   15   to the left of    1