import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Main {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner sc = new Scanner(System.in);
int n=sc.nextInt();
String []mystr=new String[n];
for(int i=0;i<n;i++){
int n1=sc.nextInt();
String []str=new String[n1];
for(int j=0;j<n1;j++){
str[j]=sc.next();
}
if(solve(str)) mystr[i]="Yeah";
else mystr[i]="Sad";
}
for(int i=0;i<n;i++){
System.out.println(mystr[i]);
}
}
public static boolean solve(String []str){
for(int i=0;i<str.length-1;i++)
for(int j=i+1;j<str.length;j++){
if(str[i].length()==str[j].length())
if(find(str[i],str[j])) return true;
}
return false;
}
public static boolean find(String parent,String child){
String parent1=parent+parent;
Pattern p = Pattern.compile( child );
Matcher m = p.matcher(parent1);
if(m.find()) return true;
String child1=new StringBuilder(child).reverse().toString();
//System.out.println(child1);
p = Pattern.compile(child1);
m = p.matcher(parent1);
if(m.find()) return true;
return false;
}
}