using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
class Solution {

    static void Main(String[] args) {
        int q = Convert.ToInt32(Console.ReadLine());
        for(int a0 = 0; a0 < q; a0++){
            string s = Console.ReadLine();
            int h=0,a=0,c=0,k=0,e=0,r=0,n=0;
             for(int i=0; i < s.Length; i++){
                 char temp = s[i];
                 switch(temp){
                 case 'h':h++;break;
                 case 'a':a++;break;
                 case 'c':c++;break;
                 case 'k':k++;break;
                 case 'e':e++;break;
                 case 'r':r++;break;
                 case 'n':n++;break;
              
             }
             }
            if(h>0 && a>1 && c>0 && k>1 && e>0 && r>1 && n>0  ){
                Console.WriteLine("YES");
            }
            else{
                Console.WriteLine("NO");
            }
        }
    }
}