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 n = in.nextInt();
		String[] str = new String[n];
		char c[];
		
		char[] arr = "knarrekcah".toCharArray();
		int top = "hackerrank".length()-1;
		
		for(int i=0;i<n;i++){
			str[i] = in.next();
		}
		
		for(int i=0;i<n;i++){
			c = str[i].toCharArray();
			for(char x : c){
				if(top<0)break;
				if(x == arr[top])
					top--;
			}
			
			if(top<0){
				System.out.println("YES");
				top = "hackerrank".length()-1;
			}
			else{
				System.out.println("NO");
				top = "hackerrank".length()-1;
			}
		}
		
		in.close();
	}
}