How many orders did Marcelia Goering place in 2021 that uses the Priority Shipping method?
in 2021 refers to substr(order_date, 1, 4) = '2021'; priority shipping method refers to method_name = 'Priority'
SELECT COUNT(*) FROM customer AS T1 INNER JOIN cust_order AS T2 ON T1.customer_id = T2.customer_id INNER JOIN shipping_method AS T3 ON T3.method_id = T2.shipping_method_id WHERE T1.first_name = 'Marcelia' AND T1.last_name = 'Goering' AND STRFTIME('%Y', T2.order_date) = '2021' AND T3.method_name = 'Priority'