How many of Robert Caro's books won a Pulitzer Prize?
2
1
1
1
1
1
1
1
1
2
1
2
1
2
1
2
1
2
1
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
4
3
2
4
3
2
4
3
2
4
3
2
4
3
2
4
3
5
2
4
3
5
2
4
0
3
5
4
3
5
0
4
3
5
0
4
3
5
4
0
3
5
4
3
5
0
4
5
0
4
5
4
5
4
6
5
4
6
5
4
6
5
4
6
7
5
6
7
5
6
7
5
6
7
5
One
6
7
5
One
6
7
5
One
6
7
8
9
One
6
7
8
9
One
6
7
8
11
9
One
6
7
8
11
9
One
6
7
8
11
9
One
6
7
8
11
9
One
10
6
7
8
11
9
One
10
6
7
8
11
13
9
One
10
6
7
8
11
13
9
One
10
6
7
8
11
13
12
9
One
No
10
6
7
ONE
ONE
ONE
ONE
ONE
ONE