#!/bin/python3

import sys
from collections import Counter

hack = {'h': 1, 'a': 2, 'c': 1, 'k': 2, 'e': 1, 'r': 2, 'n': 1}

q = int(input().strip())
for a0 in range(q):
    s = input().strip()
    # your code goes here
    b = list(s)
    count = Counter(b)
    
    for item in hack:
        if item not in count:
            print ('NO')
            break
        elif hack[item] > count[item]:
            print('NO')
            break
        else:
            print('YES')
            break