Question: who qualified for world cup 2018 south america
[{'answer': 'Peru', 'provenance': [{'wikipedia_id': '45195256', 'title': '2018 FIFA World Cup qualification (CONMEBOL)', 'start_paragraph_id': 8, 'start_character': 48, 'end_paragraph_id': 8, 'end_character': 52, 'bleu_score': 1.0, 'section': 'Section::::Entrants.\n'}]}, {'answer': 'Colombia'}, {'answer': 'Argentina', 'provenance': [{'wikipedia_id': '45195256', 'title': '2018 FIFA World Cup qualification (CONMEBOL)', 'start_paragraph_id': 5, 'start_character': 24, 'end_paragraph_id': 5, 'end_character': 33, 'bleu_score': 1.0, 'section': 'Section::::Format.\n'}]}, {'answer': 'Uruguay'}, {'answer': 'Brazil', 'provenance': [{'wikipedia_id': '45195256', 'title': '2018 FIFA World Cup qualification (CONMEBOL)', 'start_paragraph_id': 5, 'start_character': 38, 'end_paragraph_id': 5, 'end_character': 44, 'bleu_score': 1.0, 'section': 'Section::::Format.\n'}]}]