Which kind of watercraft is on the water?
The watercraft is boats.
    src        edge_attr  dst
0     0   to the left of    3
1     1  to the right of   11
2     1   to the left of    7
3     1   to the left of   13
4     1  to the right of   12
5     2   to the left of    7
6     3               on   16
7     3  to the right of    0
8     3               at    2
9     3  to the right of   12
10    3  to the right of   16
11    5  to the right of   16
12    5   to the left of   11
13    5   to the left of    9
14    6      flying over   16
15    6  to the right of   16
16    7  to the right of    2
17    7  to the right of    8
18    7  to the right of   11
19    7  to the right of   10
20    7  to the right of   13
21    7  to the right of    9
22    7  to the right of    1
23    7  to the right of   14
24    8  to the right of    9
25    8  to the right of   11
26    8   to the left of   13
27    8  to the right of   12
28    8   to the left of    7
29    9  to the right of   12
30    9  to the right of    5
31    9   to the left of    7
32    9   to the left of    8
33   10  to the right of   12
34   10   to the left of    7
35   11               on    3
36   11   to the left of    1
37   11  to the right of   12
38   11   to the left of    8
39   11  to the right of    5
40   11   to the left of   13
41   11   to the left of    7
42   12   to the left of   14
43   12   to the left of    1
44   12   to the left of    9
45   12   to the left of    8
46   12   to the left of    3
47   12   to the left of   10
48   12   to the left of   11
49   13  to the right of    8
50   13  to the right of   11
51   13  to the right of    1
52   13   to the left of    7
53   14   to the left of    7
54   14  to the right of   12
55   16   to the left of    5
56   16   to the left of    3
57   16   to the left of    6