What is the average sentiment polarity score of the Cooking Fever app? Indicate the age group that the app is targeted at.
average sentiment polarity score = AVG(Sentiment_Polarity); age group the app is target at refers to Content Rating;
SELECT AVG(T2.Sentiment_Polarity), T1."Content Rating" FROM playstore AS T1 INNER JOIN user_reviews AS T2 ON T1.App = T2.App WHERE T1.App = 'Cooking Fever'