Question: What is the nickname of the boxer who was offered to fight against Sergio Martinez in Atlantic City 2011?
{'answer': 'Nicknamed "The Punisher", and standing at a height of 6 foot 1 inches, Williams was unusually tall for the three divisions in which he competed.', 'supporting_facts': [['Sergio Martínez vs. Darren Barker', 1], ['Sergio Martínez vs. Darren Barker', 2], ['Paul Williams (boxer)', 0], ['Paul Williams (boxer)', 2]]}