Task: Explanation
Input (English): Nancy Jean Cartwright (born October 25, 1957) is an American voice actress, film and television actress, and comedian. She is known for her long-running role as Bart Simpson on the animated television series "The Simpsons". Cartwright also voices other characters for the show, including Nelson Muntz, Ralph Wiggum, Todd Flanders, Kearney, and Database. Question: Which long running character from the Simpsons is Nancy Cartwright known for that sang the song Deep, Deep Trouble Answer: Bart Simpson
Output (English):  She is known for her longrunning role as Bart Simpson on the animated television series The Simpsons.