Question: when did they start filming the last jedi
[{'answer': 'September 14 , 2015', 'provenance': [{'wikipedia_id': '43910621', 'title': 'Star Wars: The Last Jedi', 'start_paragraph_id': 37, 'start_character': 85, 'end_paragraph_id': 37, 'end_character': 104, 'bleu_score': 1.0, 'section': 'Section::::Production.:Filming.\n'}]}, {'provenance': [{'wikipedia_id': '43910621', 'title': 'Star Wars: The Last Jedi', 'start_paragraph_id': 37, 'start_character': 0, 'end_paragraph_id': 37, 'end_character': 728, 'bleu_score': 0.9315196407143821, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4335952750777271891}, 'section': 'Section::::Production.:Filming.\n'}]}]