wordnet-magic example - code review

gistfile1.txt

var inspect = require('util-inspect');

var wordNet = require('util')
var wordNet = require('wordnet-magic')
var wn = wordNet(__dirname + '/sqlite-31.db', false)

var input = 'the cat is patiently waiting at some of the best hospitals in Los Angeles'
var words = input.split(' ')
var sort = { nouns:[], verbs:[], adjectives:[], adverbs:[] }
processWord(0)
function processWord(index){

  if ( index >= words.length ) return sentenceProcessed()
  console.log('processing word:', words[index])
  var count = 0;
  // nouns
  wn.isNoun(words[index], function(err, data){
    if ( data ) {
      console.log(' - isNoun:', data)
      sort.nouns.push(words[index])
    }
    checkWordProcessComplete()
  })
  // verbs
  wn.isVerb(words[index], function(err, data){
    if ( data ) {
      console.log(' - isVerb:', data)
      sort.verbs.push(words[index])
    }
    checkWordProcessComplete()
  })
  // adjective
  wn.isAdjective(words[index], function(err, data){
    if ( data ) {
      console.log(' - isAdjective:', data)
      sort.adjectives.push(words[index])
    }
    checkWordProcessComplete()
  })
  // adverb
  wn.isAdverb(words[index], function(err, data){
    if ( data ) {
      console.log(' - isAdverb:', data)
      sort.adverbs.push(words[index])
    }
    checkWordProcessComplete()
  });

  function checkWordProcessComplete(){
    if ( ++count == 4 ) processWord(index+1)
  }

}
function sentenceProcessed(){
  console.log('### complete ###', inspect(sort))
}