Complex sentence: John Joseph Nevin (born 7 June 1989 in Mullingar, County Westmeath, Ireland), more commonly known as John Joe Nevin, is an amateur boxer who won the Irish national boxing title and qualified for the 2008 Summer Olympics at the age of 18.
Split into simpler sentences: John Joseph Nevin (born 7 June 1989), more commonly known as John Joe Nevin, is an Irish amateur boxer. He won the Irish national boxing title and qualified for the 2008 Summer Olympics at the age of 18.