#!/bin/python3

import sys
import re

q = int(input().strip())
for a0 in range(q):
    s = input().strip()
    if not re.findall('[^h]*h[^a]*a[^c]*c[^k]*k[^e]*e[^r]*r[^r]*r[^a]*a[^n]*n[^k]*k',s):
        print('NO')
    else:
        print('YES')