Question: What was is the largest stadium in Argentina that some of the group matches of the 1978 FIFA World Cup were played in?
{'answer': 'Estadio Antonio Vespucio Liberti', 'supporting_facts': [['1978 FIFA World Cup Group 1', 2], ['Estadio Monumental Antonio Vespucio Liberti', 0], ['Estadio Monumental Antonio Vespucio Liberti', 2]]}