public static void main(String[] args){

Scanner in = new Scanner(System.in);

int testCases = Integer.parseInt(in.nextLine());

String regexPatern = "(<[^>]*>)";

Pattern stringPatern = Pattern.compile(regexPatern);

while(testCases>0){

String line = in.nextLine();

int pos = 0;

Matcher m = stringPatern.matcher(line);

String previousHTMLTag = null;

int previousTagPos = -1;

boolean didFind = false;

while(m.find())

{

String htmlTag = line.substring(m.start(),m.end());

if(htmlTag.charAt(1) != '/')

{

previousHTMLTag = htmlTag;

previousTagPos = m.end();

}else if(htmlTag.charAt(1) == '/' && previousHTMLTag != null){

if(previousHTMLTag.substring(1).equals(htmlTag.substring(2))&&previousHTMLTag.length()>2 && m.start()>previousTagPos+1){

System.out.println(line.substring(previousTagPos,m.start()));

didFind = true;

}

previousHTMLTag = null;

}

}

System.out.print(didFind?"":"None\n");

testCases--;

}

}