#!/bin/python

def check(ch):
    res = 0
    for j in range(len(check_ch)):
        for i in range(len(ch_tab)):
            if ch_tab[i] == check_ch[j]:
                res += 1
                break
    if res == len(check_ch):
        return "YES"
    else: return "NO"

check_ch = ["h","a","c","k","e","r","r","a","n","k"]

result = []
q = int(raw_input())
for i in range(q):
    ch = raw_input()
    ch_tab = [c0 for c0 in ch]
    result.append(check(ch))

for res in result:
    print res