diff --git a/Relation.h b/Relation.h
index 8668481..6f69bfa 100644
--- a/Relation.h
+++ b/Relation.h
@@ -21,7 +21,16 @@ public:
 		att = a;
 	}
 	
-	void addTuple(vector< Attribute> tuple);
+	void addTuple(vector<string> tuple)
+	{	
+		else
+		{
+			for(int i = 0; i < att.size(); ++i) //for all the attributes
+			{
+				att[i].pushBack(tuple[i]);
+			}
+		}	
+	}
 	
 	void display()
 	{