Return original default parts of speech to avoid confusion

src/constants.js

@@ -5,7 +5,7 @@ export const DEFAULT_DICTIONARY = {
   name: 'New',
   specification: 'Dictionary',
   description: 'A new dictionary.',
-  partsOfSpeech: ['Noun', 'Adjective', 'Verb'],
+  partsOfSpeech: ['Noun', 'Adjective', 'Verb', 'Adverb', 'Preposition', 'Pronoun', 'Conjunction'],
   alphabeticalOrder: [],
   details: {
     phonology: {

src/php/api/Dictionary.php

@@ -11,7 +11,7 @@ class Dictionary {
     $this->token = new Token();
 
     $this->defaults = array(
-      'partsOfSpeech' => 'Noun,Adjective,Verb',
+      'partsOfSpeech' => 'Noun,Adjective,Verb,Adverb,Preposition,Pronoun,Conjunction',
     );
   }