Question: who won group a in world cup 2018
[{'answer': 'Uruguay', 'provenance': [{'wikipedia_id': '55809037', 'title': '2018 FIFA World Cup Group A', 'start_paragraph_id': 1, 'start_character': 127, 'end_paragraph_id': 1, 'end_character': 134, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]