public static void main(String[] args) {

String[] res = findWords(new String[] {});

for (String s : res)

System.out.println(s);

}

public static String[] findWords(String[] words) {

int[] pos = new int[] { 1, 2, 2, 1, 0, 1, 1, 1, 0, 1, 1, 1, 2, 2, 0, 0, 0, 0, 1, 0, 0, 2, 0, 2, 0, 2 };

List<String> list = new ArrayList<String>();

for (int i = 0; i < words.length; i++) {

String str = words[i].toLowerCase();

int line = pos[str.charAt(0) - 'a'];

int index = 1;

while (index < str.length() && pos[str.charAt(index) - 'a'] == line)

index++;

if (index == str.length())

list.add(words[i]);

}

String[] res = new String[list.size()];

return list.toArray(res);

}