How many Great Lakes are there in North America?
5
5
5
5
5
5
5
5
5
5
5
5
5
5
4
5
4
5
4
5
4
5
4
5
4
5
4
5
4
4
4
4
4
6
2
4
6
2
4
6
2
4
7
6
2
4
7
6
2
4
7
6
2
4
7
6
2
4
7
6
2
4
7
8
6
2
3
7
8
6
2
3
7
8
6
2
3
7
8
6
2
3
9
7
8
6
2
3
14
9
7
8
6
2
3
14
9
7
8
6
2
3
14
9
7
8
6
2
3
14
9
7
11
8
6
2
3
14
9
7
11
8
6
1
2
3
five
14
9
7
11
8
6
1
2
3
five
14
9
10
7
11
8
6
1
2
3
five
14
9
10
7
11
8
1
3
five
14
9
10
7
11
8
1
3
five
12
14
9
10
7
11
8
1
3
five
12
14
21
9
10
11
8
1
3
five
12
14
21
9
10
11
8
13
1
3
five
12
14
9
13