Task: Explanation
Input (English): A "Happy Meal" is a form of kids' meal sold at the fast-food chain McDonald's since June 1979. A toy is included with the food, both of which are usually contained in a box or paper bag with the McDonald's logo. The packaging and toy are frequently part of a marketing tie-in to an existing television show, film, or toy brand. Question: The Happy Meal was invented by the restaurant chain founded in what year? Answer: 1940
Output (English): A Happy Meal is a form of kids meal sold at the fastfood chain McDonalds since June 1979.