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();
        //char[] ch=s1.toCharArray();  
         //for(int i=0;i<ch.length;i++){  
        //System.out.print(ch[i]); } 
  
        
        for(int a0 = 0; a0 < q; a0++){
            String s = in.next();
            char[] ch = s.toCharArray();
            
            
            int[] array =new int[7];
            for(int i =0; i<ch.length;i++){
           if (ch[i] == 'h')
                array[0]=array[0]+1;
            if (ch[i] == 'a')
                array[1]=array[1]+1;
            if (ch[i] == 'c')
                array[2]=array[2]+1;
            if (ch[i] == 'k')
                array[3]=array[3]+1;
            if (ch[i] == 'e')
                array[4]=array[4]+1;
            if (ch[i] == 'r')
                array[5]=array[5]+1;
            if (ch[i] == 'n')
                array[6]=array[6]+1;}
            if(array[0]>=1 && array[1]>=2 && array[2]>=1 && array[3]>=2 && array[4]>=1 && array[5]>=2 && array[6]>=1 )
            System.out.println("YES");
        else
            System.out.println("NO"); 
        }
        
            
    }
}