Question: where is the world cup 2018 stadium in russia
[{'answer': 'Moscow', 'provenance': [{'wikipedia_id': '13327177', 'title': '2018 FIFA World Cup', 'start_paragraph_id': 3, 'start_character': 59, 'end_paragraph_id': 3, 'end_character': 65, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '13327177', 'title': '2018 FIFA World Cup', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 218, 'bleu_score': 0.8627586293513111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17164383651886441972}, 'section': 'Section::::Abstract.'}]}]