#!/bin/python

import sys


q = int(raw_input().strip())
for a0 in xrange(q):
    s = raw_input().strip()
    # your code goes here

    if len(s) < 10:
        print "NO"
    else:
        stack = ["h", "a", "c", "k", "e", "r", "r", "a", "n", "k"]

        char = list(s)

        i = len(char)-1

        while i >= 0:
            if len(stack)==0:
                break
            if char[i] == stack[len(stack)-1]:
                stack.pop()
            i = i-1

        #print len(stack)
        if len(stack) ==0:
            print "YES"
        else:
            print "NO"