For each product, show its name and the number of times it was ordered.
SELECT T3.product_name ,  count(*) FROM orders AS T1 JOIN order_items AS T2 JOIN products AS T3 ON T1.order_id = T2.order_id AND T2.product_id = T3.product_id GROUP BY T3.product_id
SELECT T3.product_name ,  count(*) FROM orders AS T1 JOIN order_items AS T2 JOIN products AS T3 ON T1.order_id = T2.order_id AND T2.product_id = T3.product_id GROUP BY T3.product_id
[{'product_name': 'food', 'count(*)': 1}, {'product_name': 'food', 'count(*)': 2}, {'product_name': 'food', 'count(*)': 2}, {'product_name': 'clothes', 'count(*)': 1}, {'product_name': 'book', 'count(*)': 1}, {'product_name': 'phone', 'count(*)': 2}, {'product_name': 'phone', 'count(*)': 1}, {'product_name': 'music', 'count(*)': 2}, {'product_name': 'music', 'count(*)': 3}]