How many oceans are there?
4
3
3
4
3
4
3
4
3
5
4
2
3
5
4
2
3
5
4
2
3
5
4
2
3
5
4
2
3
5
4
2
3
5
4
2
3
5
6
4
2
3
5
6
4
2
3
1
5
6
4
2
3
1
5
6
4
2
3
1
5
6
4
2
7
3
1
5
6
4
2
7
3
1
5
6
4
2
7
3
1
5
6
4
2
7
3
1
5
6
4
2
7
1
5
6
4
2
7
1
5
6
2
7
8
1
5
6
2
7
8
1
5
0
6
2
7
8
1
6
0
7
8
1
9
6
7
8
1
9
6
7
8
1
10
9
6
7
8
1
10
9
6
7
8
1
12
10
9
6
7
8
1
12
10
9
6
11
7
8
1
12
10
9
11
7
8
1
12
10
9
11
7
8
12
10
13
9
11
7
8
12
10
13
9
11
14
7
8
12
10
13
9
66
102
66
102
144
63
144
365