How many black presidents has the United States had?
1
1
1
1
1
1
1
2
1
2
1
2
1
2
1
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
5
2
1
4
3
0
5
2
1
4
3
5
2
0
1
4
3
5
2
0
1
4
3
5
2
1
4
3
0
5
2
4
3
5
2
0
4
3
5
2
4
3
5
2
4
3
5
2
6
4
3
5
2
6
4
3
5
6
4
3
5
6
4
3
7
5
6
One
4
3
7
5
6
One
4
3
7
5
6
8
One
7
5
6
8
One
9
7
5
11
6
8
One
9
7
5
11
6
8
One
9
7
5
11
6
8
One
9
7
11
6
8
One
9
7
11
6
8
One
9
7
11
6
8
10
One
9
7
11
6
8
10
One
9
7
11
13
6
8
10
One
9
7
11
13
6
8
10
One
9
7
11
13
6
8
10
One
ONE
ONE
ONE
ONE
ONE
One.
One.