question: which Argentine boxer did Abel Laudonio challenged for the South American lightweight title
answer: Nicolino Locche
context: Title: Abel Laudonio
  Passage: Abel Ricardo Laudonio (30 August 1938 – 12 August 2014) was an Argentinean lightweight boxer.  As an amateur he competed in the 1956 and 1960 Olympics and won a bronze medal in the lightweight division in 1960.  In 1961 he turned professional and in 1965 challenged Nicolino Locche for the South American lightweight title, but lost by decision.  Laudonio retired the same year with a record of 48 wins (37 by knockout), 6 losses, and 2 draws.  He later ran a fitness center in Buenos Aires.
  Title: Mzonke Fana
  Passage: Mzonke Fana (born 29 October 1973 in Cape Town, South Africa) is a professional boxer in the junior lightweight (130 lb) division.  Known as ""The Rose of Khayelitsha"", he was a virtual unknown in the boxing world until he challenged and defeated Malcolm Klassen for the IBF World Junior lightweight title in 2007.  Prior to the victory, he was knocked out on 9 April 2005 by Marco Antonio Barrera in the second round for the WBC championship.  He fought Paulus Moses for the WBO international lightweight title, but the fight stopped in the 4th round.  On 7 December 2013 he fought upcoming fighter Edis Tatli for the WBA Inter-continental lightweight title at the Barona Areena in Espoo, Finland, but lost a decision.
  Title: Nicolino Locche
  Passage: Nicolino Locche (September 2, 1939 – September 7, 2005) was an Argentine boxer from Tunuyán, Mendoza who held the World Light welterweight title from 1968 to 1972.  Locche is often cited as one of the finest defensive boxers of all time.
citations: Abel Laudonio Nicolino Locche