diff --git a/ast_generator/ast_generator.py b/ast_generator/ast_generator.py
index 11e585c..e39fe18 100644
--- a/ast_generator/ast_generator.py
+++ b/ast_generator/ast_generator.py
@@ -2,7 +2,7 @@ import random
 import string
 import xml.etree.ElementTree as ET
 
-# from english_words import get_english_words_set
+from english_words import get_english_words_set
 
 from constants import *
 
@@ -38,13 +38,11 @@ class AstGenerator:
         self.symbol_table.append(global_scope)  # NOTE for debug
         self.current_scope = global_scope
 
-        # names = get_english_words_set(['web2'], lower=True)
-        names = random.choices(string.ascii_letters, k=self.settings['properties']['id-length']['max'])
-        possible_names = filter(lambda x: self.settings['properties']['id-length']['min'] < len(x)
-                                          < self.settings['properties']['id-length']['max'], names)
+        names = get_english_words_set(['web2'], alpha=True)
+        possible_names = filter(lambda x: self.settings['properties']['id-length']['max'] <= len(x) <= self.settings['properties']['id-length']['max'], names)
 
-        var_name_len = len(list(possible_names))
         var_name_list = list(possible_names)
+        var_name_len = len(var_name_list)
         self.variable_names = var_name_list[0:var_name_len // 2]
         self.routine_names = var_name_list[var_name_len // 2:var_name_len]
 
@@ -529,10 +527,13 @@ class AstGenerator:
         @param name_type:
         @return:
         """
-        length = random.randint(self.settings['properties']['id-length']['min'],
-                                self.settings['properties']['id-length']['max'])
-        name = ''.join(random.choices(string.ascii_letters, k=length))
-        return name
+        if not self.settings['properties']['use-english-words']:
+            length = random.randint(self.settings['properties']['id-length']['min'],
+                                    self.settings['properties']['id-length']['max'])
+            name = ''.join(random.choices(string.ascii_letters, k=length))
+            return name
+        else:
+            return random.choice(self.variable_names)
 
     def get_op(self, type):
 
diff --git a/config.yaml b/config.yaml
index a769b9e..4577154 100644
--- a/config.yaml
+++ b/config.yaml
@@ -10,7 +10,7 @@ properties:
     use-english-words: True                      # use english words instead of random names (this may limit the maximum number of names)
     id-length:                                   # length of identifiers
         min: 1
-        max: 10
+        max: 5
     function-name-length:                        # length of function names
         min: 1
         max: 10