#include<iostream>
#include<string.h>
#include<vector>
using namespace std;

int main()
{
    int n;
    cin>>n;

    string s;
    for(int k=0;k<n;k++)
    {
        cin.ignore();
        getline(cin,s);

        int c_h=0,c_a=0,c_c=0,c_k=0,c_e=0,c_r=0,c_n=0;

        for(int i=0;i<s.size();i++)
        {
            if(s[i]=='h') c_h++;
            else if(s[i]=='a') c_a++;
            else if(s[i]=='c') c_c++;
            else if(s[i]=='k') c_k++;
            else if(s[i]=='e') c_e++;
            else if(s[i]=='r') c_r++;
            else if(s[i]=='n') c_n++;
        }

        if(c_h>=1 && c_a>=2 && c_c>=1 && c_k>=2 && c_e>=1 && c_r>=2 && c_n>=1)
        {
          //  cout<<"h:"<<c_h;
            cout<<"YES"<<endl;
        }
        else{
            //cout<<"h:"<<c_h<<" a:"<<c_a<<" c:"<<c_c<<"k:"<<c_k<<" e:"<<c_e<<" r:"<<c_r<<" n:"<<c_n;
            cout<<"NO"<<endl;
        }
    }

    return 0;
}