question: How many medals does an American former competitive swimmer and the most decorated Olympian of all time own, he also  had an American swimming coach who served as the head coach for the Michigan Wolverines swimming and diving team?
answer: 28 medals
context: Title: Michael Phelps
  Passage: Michael Fred Phelps II (born June 30, 1985) is an American former competitive swimmer and the most decorated Olympian of all time, with a total of 28 medals.  Phelps also holds the all-time records for Olympic gold medals (23), Olympic gold medals in individual events (13), and Olympic medals in individual events (16).  In winning eight gold medals at the 2008 Beijing Games, Phelps broke fellow American swimmer Mark Spitz's 1972 record of seven first-place finishes at any single Olympic Games.  At the 2004 Summer Olympics in Athens, Phelps had already tied the record of eight medals of any color at a single Games by winning six gold and two bronze medals.  At the 2012 Summer Olympics in London, Phelps won four gold and two silver medals, and at the 2016 Summer Olympics in Rio de Janeiro, he won five gold medals and one silver.  This made him the most successful athlete of the Games for the fourth Olympics in a row.
  Title: Vipa Bernhardt
  Passage: Vipa Bernhardt (born September 20, 1982) is a German former competitive swimmer who specialized in breaststroke events.  She was a member of the swimming team for Schwimmgemeinschaft Frankfurt.  Bernhardt was also a college swimmer for the Florida Gators swimming and diving team under head coach Gregg Troy at the University of Florida in Gainesville, Florida.
  Title: Bob Bowman (coach)
  Passage: Robert Bowman (April 6, 1965) is an American swimming coach who is the current head coach of the Arizona State Sun Devils swimming and diving teams of Arizona State University.  Bowman is best known as the coach of record-breaking American swimmer Michael Phelps.  From 2005 to 2008, Bowman served as the head coach for the Michigan Wolverines swimming and diving team of the University of Michigan men's swimming & diving team.  From 2008 to 2015, he worked as the CEO and head coach for North Baltimore Aquatic Club.
citations: Bob Bowman (coach) Michael Phelps