Among the orders placed by Ei, how many orders have quantity greater than 4?
Ei is the name of the customer; orders have quantity greater than 4 refer to OrderNumber WHERE Order Quantity > 4;
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