Definition: In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.
Input: A Charlie Brown Christmas is a 1965 animated television special based on the comic strip "Peanuts", by Charles M. Schulz. Produced by Lee Mendelson and directed by Bill Melendez, the program made its debut on CBS on December 9, 1965. In the special, lead character Charlie Brown finds himself depressed despite the onset of the cheerful holiday season. Lucy suggests he direct a neighborhood Christmas play, but his best efforts are ignored and mocked by his peers. After Linus tells Charlie Brown about the true meaning of Christmas, Charlie Brown cheers up, and the Peanuts gang unites to celebrate the Christmas season. Question: Charlia Brown is the lead character of a television special written with a popular Christmas song written by who? Answer: Lee Mendelson and Vince Guaraldi
Output:
In the special, lead character Charlie Brown finds himself depressed despite the onset of the cheerful holiday season.