diff --git a/relational/optimizations.py b/relational/optimizations.py
index 6866dc1..267bfd4 100644
--- a/relational/optimizations.py
+++ b/relational/optimizations.py
@@ -326,6 +326,17 @@ def tokenize_select(expression):
     except:
         pass
     
+    
+    level=0
+    for i in range(len(l)):
+        l[i]=level_string(l[i])
+        l[i].level=level
+        
+        if l[i]=='(':
+            level+=1
+        elif l[i]==')':
+            level-=1
+    
     return l
 
 def swap_rename_projection(n):
diff --git a/test/driver.py b/test/driver.py
index b30f0a8..5114905 100644
--- a/test/driver.py
+++ b/test/driver.py
@@ -22,6 +22,8 @@ from relational import relation, parser, optimizer
 
 import os
 
+print relation
+
 rels={}
 examples_path='samples/'
 tests_path='test/'
@@ -44,9 +46,10 @@ def load_relations():
             #Naming the relation
             relname=i[:-4]
             
-            print "Loading relation %s with name %s" % (i,relname)
+            print ("Loading relation %s with name %s..." % (i,relname)),
             
             rels[relname]=relation.relation('%s%s' % (examples_path,i))
+            print 'done'
             
 def execute_tests():
     
diff --git a/test/php.query b/test/php.query
index 41e6510..19e0d80 100644
--- a/test/php.query
+++ b/test/php.query
@@ -1 +1 @@
-σ age<30and skill=='PHP' (people ᐅᐊ skills)
+σ age<30 and skill=='PHP' (people ᐅᐊ skills)