#include <bits/stdc++.h>

using namespace std;

int main(){
    int q;
    cin >> q;
    for(int a0 = 0; a0 < q; a0++){
        string s;
        int h=0,a=0,c=0,k=0,e=0,r=0,n=0;
        cin >> s;
        for(int i=0;s[i]!='\0';i++)
            {
            if(s[i]=='h')
                h++;
            else if(s[i]=='a')
                a++;
                else if(s[i]=='c')
                c++;
                else if(s[i]=='k')
                k++;
                else if(s[i]=='e')
                e++;
                else if(s[i]=='r')
                r++;
                else if(s[i]=='n')
                n++;
                else if(s[i]=='k')
                k++;
        }
        if(h>0&&a>1&&c>0&&k>0&&e>0&&r>1&&n>0&&k>1)
           cout<<"YES\n";
        else
            cout<<"NO\n";
    }
    return 0;
}