Write SQL query to solve given problem: Please list the customer names whose order quantity was more than 5 on 6/1/2018.. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T FROM ( SELECT DISTINCT CASE  WHEN SUM(T1.`Order Quantity`) > 5 THEN T2.`Customer Names` END AS T FROM `Sales Orders` T1 INNER JOIN Customers T2 ON T2.CustomerID = T1._CustomerID WHERE T1.OrderDate = '6/1/18' GROUP BY T1._CustomerID ) WHERE T IS NOT NULL