#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    char ch;
    string s;
    int num,h=0,a=0,c=0,k=0,e=0,r=0,n=0;
    cin >> num;
    cin.get();
    for(int p = 0; p < num; p++){
        getline(cin,s);
        for(int i=0;i<(s.size());i++)
            {
                ch=s[i];
            if(ch=='h'){
                h++;
            }
            if(ch=='a'){
                a++;
            }
            if(ch=='c'){
                c++;
            }
            if(ch=='k'){
                k++;
            }
            if(ch=='e'){
                e++;
            }
            if(ch=='r'){
                r++;
            }
            if(ch=='n'){
                n++;
            }

        }
        if(h>=1&&a>=2&&c>=1&&k>=2&&e>=1&&r>=2&&n>=1)
        {
            cout<<"YES"<<endl;
        }
        else{
            cout<<"NO"<<endl;
        }
        h=a=c=k=e=r=n=0;
    }
    return 0;

}