Question: when did they start filming fast and furious 7
[{'answer': 'early September 2013', 'provenance': [{'wikipedia_id': '39238465', 'title': 'Furious 7', 'start_paragraph_id': 47, 'start_character': 31, 'end_paragraph_id': 47, 'end_character': 51, 'bleu_score': 1.0, 'section': 'Section::::Production.:Filming.\n'}]}, {'provenance': [{'wikipedia_id': '39238465', 'title': 'Furious 7', 'start_paragraph_id': 47, 'start_character': 0, 'end_paragraph_id': 47, 'end_character': 326, 'bleu_score': 0.9632870032952191, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8953456124633795515}, 'section': 'Section::::Production.:Filming.\n'}]}]