import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
class Ideone
{
{
String s
= "It is a long established fact that"; Pattern pattern = Pattern.compile("\\G\\s*(\\S+\\s+\\S+\\s+\\S+)");
Matcher matcher = pattern.matcher(s);
while (matcher.find()){
System.
out.
println(matcher.
group(1)); }
}
}
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