import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MainClass {
public static void main(String[] args) throws Exception {
Matcher m = Pattern.compile("[frb][aiu][gx]").matcher("fix the rug with bags");
while (m.find())
System.out.println(m.group());
m.reset("fix the rig with rags");
while (m.find())
System.out.println(m.group());
}
}
/*
*/
fix
rug
bag
fix
rig
rag