Task: Explanation
Input (English): Carlos Quintana (born November 6, 1976) is a retired Puerto Rican professional boxer. As an amateur Quintana represented Puerto Rico. He debuted as a professional in 1997. On February 24, 2006, he participated in his first professional championship fight, defeating Raul Bejerano for the World Boxing Organization's Latino welterweight championship. His first defense took place on June 24, 2006 when he defeated Joel Julio by unanimous decision in a welterweight title eliminator. In this fight he also won the World Boxing Council's Latino welterweight championship. His first world title fight took place on December 2, 2006, when he fought against Miguel Cotto for the World Boxing Association welterweight title. Cotto won the fight by technical knockout. On February 9, 2008, Quintana challenged Paul Williams for the WBO welterweight championship, winning the fight by unanimous decision. He entered the Light Middleweight division to face Deandre Latimore, knocking Latimore out to win the NABO Light Middleweight championship. Question: What was the nickname of the boxer defeated by Carlos Quintana in the 2008 WBO welterweight championship? Answer: The Punisher
Output (English):  On February 9, 2008, Quintana challenged Paul Williams for the WBO welterweight championship, winning the fight by unanimous decision.