#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 */   
    int n;
    cin>>n;
    string s[n];
    for(int i=0;i<n;i++)
        {
        cin>>s[i];
    }
    int n5[n];
for(int i=0;i<n;i++)
        {
    n5[i]=s[i].length();
}    
   
for(int i=0;i<n;i++)
        {
     int h[7]={0,0,0,0,0,0,0};
    for(int j=0;j<n5[i];j++)
        {
if(s[i][j]=='h')
    {
    h[0]++;
}
        if(s[i][j]=='a')
    {
    h[1]++;
}
if(s[i][j]=='c')
    {
    h[2]++;
}
if(s[i][j]=='k')
    {
    h[3]++;
}
if(s[i][j]=='e')
    {
    h[4]++;
}
        if(s[i][j]=='r')
    {
    h[5]++;
}
        if(s[i][j]=='n')
    {
    h[6]++;
}
}
    int n2=0;
    if(h[0]>=1&&h[1]>=2&&h[2]>=1&&h[3]>=2&&h[4]>=1&&h[5]>=2&&h[6]>=1)
        {
        cout<<"YES\n";
    }
    else 
        {
        cout<<"NO\n";
    }
    
    
}
    
    return 0;
}