import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
class Ideone
{
{
String s
= "test test3 t3st test: word%5 test! testing t[st"; Pattern pattern = Pattern.compile("(?<!\\S)\\p{Alpha}+(?!\\S)");
Matcher matcher = pattern.matcher(s);
while (matcher.find()){
System.
out.
println(matcher.
group(0)); }
}
}
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