import java.nio.*;
import java.util.*;

public class RandomWords implements Readable {
private static Random rand = new Random(47);
private static final char[] capitals =
        "ABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();
private static final char[] lowers =
        "abcdefghijklmnopqrstuvwxyz".toCharArray();
private static final char[] vowels =
        "aeiou".toCharArray();
private int count;
public RandomWords(int count) { this.count = count; }
public int read(CharBuffer cb) {
    if(count-- == 0)
        return -1;
    cb.append(capitals[rand.nextInt(capitals.length)]);
    for(int i = 0; i<4; i++) {
        cb.append(capitals[rand.nextInt(vowels.length)]);
        cb.append(capitals[rand.nextInt(lowers.length)]);
    }
    cb.append(" ");
    return 10;
}
public static void main(String[] args) {
    Scanner s = new Scanner(new RandomWords(10));
    while(s.hasNext())
        System.out.println(s.next());
}
} /* Output :
YAZBREYAC
FDWBNECDR
GDEAZCMDM
RAEEUACCO
NEOADBSCW
HAGBACKEX
REQCCCBEI
NEMASBTCH
KEUEUDZDG
WAQCZBYDY