process.stdin.resume();
process.stdin.setEncoding('ascii');

var input_stdin = "";
var input_stdin_array = "";
var input_currentline = 0;

process.stdin.on('data', function (data) {
  input_stdin += data;
});

process.stdin.on('end', function () {
  input_stdin_array = input_stdin.split("\n");
  main();    
});

function readLine() {
  return input_stdin_array[input_currentline++];
}

/////////////// ignore above this line ////////////////////

function main() {
  var q = parseInt(readLine());
  for(var a0 = 0; a0 < q; a0++){
    var s = readLine();
    subString(s);
  }

}
function subString(str){
  var base = {'h':1,'a':2,'c':1,'k':2,'e':1,'r':2,'n':1};
  var comp = str.split("").reduce(function(obj, elem){
    obj[elem] = obj[elem] + 1 || 1;
    return obj;
  },{});
  for(var letter in base){
    if(typeof comp[letter] === undefined || comp[letter] < base[letter]){
      console.log("NO");
      return;
    }
  }
  console.log("YES");
}