How many books are there about Tom Sawyer?
4
3
4
3
4
3
4
3
4
3
4
3
5
4
3
2
5
4
7
3
6
2
5
4
7
3
6
2
5
4
7
3
8
6
2
5
4
7
3
8
6
2
5
4
7
3
8
6
2
5
4
7
3
8
6
2
5
4
7
3
8
6
2
5
0
4
7
3
8
6
2
5
4
7
0
3
8
1
6
2
5
4
7
3
8
1
6
0
2
5
4
7
3
8
1
6
2
5
0
4
7
3
8
1
6
2
5
4
7
0
3
8
1
6
2
5
4
7
8
1
6
0
2
5
10
7
8
1
6
2
5
0
10
7
8
1
6
9
11
2
5
10
7
0
8
1
6
9
11
2
5
10
7
8
1
6
9
11
2
5
10
7
8
1
6
9
11
2
10
7
8
1
6
9
11
10
12
8
1
9
11
108
10
ten
14
12
8
1
9
11
10
14
108
12
ten
1
9
11
10
109
108