import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int q = in.nextInt();
        for(int a0 = 0; a0 < q; a0++){
            String s = in.next(); 
        
            // your code goes here
            int len = s.length();
            if((s.contains("h"))&(s.contains("a"))&(s.contains("c"))&(s.contains("k"))&(s.contains("e"))&(s.contains("r"))&(s.contains("n")))
            {
                System.out.println("YES");
                
            }else
            {
                System.out.println("NO");
                
            }
        }
        }
    }