How many books are there about Tom Sawyer?
4
3
3
3
2
3
5
4
2
3
5
4
2
3
5
4
2
3
5
4
2
3
1
5
4
2
3
1
5
4
2
3
1
5
4
2
3
1
5
4
2
3
1
5
4
2
3
6
1
5
4
2
3
6
1
7
5
4
2
3
6
1
7
5
0
4
2
3
6
1
7
5
4
2
0
3
6
1
7
5
4
2
3
6
0
1
7
5
4
2
3
6
1
7
5
0
4
2
8
3
6
1
7
5
4
2
8
0
6
1
9
7
5
4
2
8
6
1
9
7
5
4
2
8
6
11
1
9
7
5
4
8
13
6
11
1
9
10
7
8
13
6
11
12
1
9
10
7
8
13
6
11
12
1
9
10
7
8
13
6
11
12
1
9
10
7
8
13
6
11
12
9
10
7
14
8
16
13
6
11
12
9
10
7
14
8
16
13
6
11
12
9
10
7
14
66
66
66
62
66
62