How many condiments were sold in 1997?
"Condiments" is the CategoryName; in 1997 refers to year(OrderDate) = 1997;
SELECT COUNT(T2.ProductID) FROM Categories AS T1 INNER JOIN Products AS T2 ON T1.CategoryID = T2.CategoryID INNER JOIN `Order Details` AS T3 ON T2.ProductID = T3.ProductID INNER JOIN Orders AS T4 ON T3.OrderID = T4.OrderID WHERE T1.CategoryName = 'Condiments' AND T1.CategoryID = 2 AND T4.OrderDate LIKE '1997%'