Among all customers handled by Innes E. del Castillo, how many have purchased Short-Sleeve Classic Jersey, L?
Short-Sleeve Classic Jersey, L' is name of product;
SELECT COUNT(T2.CustomerID) FROM Products AS T1 INNER JOIN Sales AS T2 ON T1.ProductID = T2.ProductID INNER JOIN Employees AS T3 ON T2.SalesPersonID = T3.EmployeeID WHERE T3.FirstName = 'Innes' AND T3.LastName = 'del Castillo' AND T1.Name = 'Short-Sleeve Classic Jersey, L' AND T3.MiddleInitial = 'e'
database name:db_id sales
Customers table Customers Cols: Customer ID dtype integer, First Name dtype text, Middle Initial dtype text, Last Name dtype text, 
Employees table Employees Cols: Employee ID dtype integer, First Name dtype text, Middle Initial dtype text, Last Name dtype text, 
Products table Products Cols: Product ID dtype integer, Name dtype text, Price dtype real, 
Sales table Sales Cols: Sales ID dtype integer, SalesPerson ID dtype integer, Customer ID dtype integer, Product ID dtype integer, Quantity dtype integer, 
