diff --git a/Condition.cpp b/Condition.cpp
index 80e74b7..eb322ce 100755
--- a/Condition.cpp
+++ b/Condition.cpp
@@ -24,36 +24,4 @@ Relation equality(string attName, string s, Relation r){
 	//currently all returned relations are called TEMP
 	Relation new_r("TEMP", new_atts);
 	return new_r;
-}
-
-/*
-vector<Attribute> equality(Attribute a, int i){
-	for (int i = 0; i < a.getSize(); ++i) {
-		//
-	}	
-}
-
-vector<Attribute> gt(Attribute a, int i){
-	for (int i = 0; i < a.getSize(); ++i) {
-		//
-	}	
-}
-
-vector<Attribute> lt(Attribute a, int i){
-	for (int i = 0; i < a.getSize(); ++i) {
-		//
-	}	
-}
-
-vector<Attribute> gte(Attribute a, int i){
-	for (int i = 0; i < a.getSize(); ++i) {
-		//
-	}	
-}
-
-vector<Attribute> lte(Attribute a, int i){
-	for (int i = 0; i < a.getSize(); ++i) {
-		//
-	}	
-}
-*/
+}
\ No newline at end of file
diff --git a/DBEngine.cpp b/DBEngine.cpp
index c8f4a4b..b559c77 100755
--- a/DBEngine.cpp
+++ b/DBEngine.cpp
@@ -150,7 +150,6 @@ Relation DBEngine::projection(vector<string> input, Relation r){
 	return temp;
 }
 
-//test error matching
 Relation DBEngine::rename(vector<string> newnames, Relation &r){
 	vector<string> temp;
 	if (r.getSize() != newnames.size()) {
@@ -214,7 +213,6 @@ Relation DBEngine::setDiff(Relation r1, Relation r2){
 		Relation new_r = r1;
 		new_r.setTableName("TEMP");
 		vector<string> temp;
-		//bool duplicate = false;
 		
 		int size = 0;
 		
diff --git a/DBEngine.h b/DBEngine.h
index a35b3a7..a1ebd24 100755
--- a/DBEngine.h
+++ b/DBEngine.h
@@ -4,7 +4,6 @@
 #include <vector>
 #include "Relation.h"
 
-//still in progress
 class DBEngine{
 	vector<Relation> tables;
 	vector<string> commands;
diff --git a/Parser.cpp b/Parser.cpp
index 6362964..a914061 100755
--- a/Parser.cpp
+++ b/Parser.cpp
@@ -137,7 +137,6 @@ Relation condition(vector<string> input, Relation &r, DBEngine &engine){
 		c = input[0].substr(1, input[0].find_last_of("\"") - 1);
 		input.erase(input.begin());
 		int offset = 0;
-		//input.erase(input.begin());
 		if(op == "=="){
 			for(int i = 0; i < r.getAttributes().size(); ++i){
 				if(r.getAttributes()[i].getName() == a1.getName()){
@@ -151,8 +150,6 @@ Relation condition(vector<string> input, Relation &r, DBEngine &engine){
 			}
 		}
 		
-		//continue stylistic homogenization here
-		
 		else if(op == "!=")
 		{
 			for(int i = 0; i < r.getAttributes().size(); ++i)
@@ -635,7 +632,7 @@ vector<string> createCMD(vector<string> input, DBEngine &engine){
 			
 			vector <PAttribute> a;
 			
-			while(input[0] != ")")	//inserting all values to relation
+			while(input[0] != ")")
 			{
 				PAttribute temp;
 				
@@ -671,7 +668,7 @@ vector<string> createCMD(vector<string> input, DBEngine &engine){
 				if(input[0] == "(")
 				{
 				
-					while(input[0] != ")")	//inserting all values to relation
+					while(input[0] != ")")
 					{
 						
 						if (input[0] == ",")
@@ -705,9 +702,9 @@ vector<string> createCMD(vector<string> input, DBEngine &engine){
 			return input;
 		}
 			
-		else cout<<"Syntax error! 2"<<endl; //refine
+		else cout<<"Syntax error! 2"<<endl;
 	}
-	else cout<<"Syntax error! 1"<<endl; //refine
+	else cout<<"Syntax error! 1"<<endl;
 }
 
 vector<string> insertCMD(vector<string> input, DBEngine &engine){
@@ -868,8 +865,6 @@ vector<string> updateCMD(vector<string> input, DBEngine &engine){
 				{
 					input.erase(input.begin());
 					
-					//s.push_back(input[0]);
-					
 					if(input[0].at(0) == '\"')
 					{
 						c.push_back(input[0].substr(1, input[0].find_last_of("\"") - 1));
@@ -950,7 +945,7 @@ vector<string> deleteCMD(vector<string> input, DBEngine &engine)
 		engine.deleteFromRelationCmd(r, temp);
 	}
 	
-	else cout<<"Syntax error!"<<endl; //make specific
+	else cout<<"Syntax error!"<<endl;
 	
 	return input;
 }
diff --git a/Relation.cpp b/Relation.cpp
index 7ab725d..1c8aa03 100755
--- a/Relation.cpp
+++ b/Relation.cpp
@@ -75,7 +75,6 @@ bool Relation::isAttribute(string s) {
 		}
 	}
 	return false;
-	//cout << "Failure to return: the requested attribute does not exist.";
 }
 
 void Relation::renameAttribute(string oldstr, string newstr){