How is the water?
The water is calm.
    src    edge_attr  dst
0     0         near    9
1     1           on    2
2     2           on    9
3     2         near    8
4     2  in front of    8
5     2           in    8
6     3           on    4
7     5         near    8
8     6           on    9
9     6           in    9
10    7           on    9
11    8           on    9
12    8       behind    2
13    8         near    2
14    8         near    9
15    8         near    5
16    9         near    8
17    9         near    0