sql retrieve the name of every customer and how many pizzas they have ordered (NULL if no pizzas ordered) : I have to answer a question that has to be answered int a certain format.

SELECT blank 1
FROM blank 2(
SELECT blank 3 AS quantity
     FROM ORDERS NATURAL JOIN ORDERCONTENTS
     GROUP BY blank 4) as quantity
ON customers.customerID=quantity.customerID
ORDER BY name;

the outcome has to retrieve the name of every customer and how many pizzas they have ordered (NULL if no pizzas ordered).

the database contains 5 tables with a layout as such

Customers
    columns
       customerID,
       name,
       address,
       phoneNumber,
       email
       
Ordercontents
    columns
        orderID,
        name,
        quantity
orders
    columns
       orderID,
       customerID,
       postcode,
       Date

products
    columns
       name,
       price

stores 
    columns
       postcode,
       address,
       phoneNumber

The numbered blanks have to be replaced to produce the outcome.
help I am stuck trying to solve this.