Given the task definition and input, reply with output. In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

What is Madonna's dad's nickname?, Context: Madonna was born to Catholic parents Silvio Anthony "Tony" Ciccone (b. 1931) and Madonna Louise Fortin (c. 1933 – December 1, 1963) in Bay City, Michigan, on August 16, 1958. Her father's parents were immigrants from Pacentro, Italy, while her mother was of French-Canadian ancestry. Tony worked as an engineer designer for Chrysler and General Motors. Since Madonna had the same name as her mother, family members called her "Little Nonni". She has two elder brothers, Anthony (born 1956) and Martin (born 1957), and three younger siblings, Paula (born 1959), Christopher (born 1960), and Melanie (born 1962).
"Tony"