import java.util.regex.Matcher;
import java.util.regex.Pattern;

class RegexMatches
{
    public static void main( String args[] ){
       Pattern p = Pattern.compile("CCC DDD|III JJJ KKK|\\S+");
       Matcher m = p.matcher("AAA BBB CCC DDD EEE FFF GGG HHH III JJJ KKK");

       while(m.find()) {
         System.out.println(m.group());
      }
   }
}