Question: Among the orders placed by Ei, how many orders have quantity greater than 4?
SQL: SELECT SUM(CASE WHEN T1.`Order Quantity` > 4 AND T2.`Customer Names` = 'Ei ' THEN 1 ELSE 0 END) FROM `Sales Orders` AS T1 INNER JOIN Customers AS T2 ON T2.CustomerID = T1._CustomerID