Question: when did they start filming the death cure
[{'answer': 'March 14 , 2016', 'provenance': [{'wikipedia_id': '46788290', 'title': 'Maze Runner: The Death Cure', 'start_paragraph_id': 29, 'start_character': 31, 'end_paragraph_id': 29, 'end_character': 46, 'bleu_score': 1.0, 'section': 'Section::::Production.:Filming.\n'}]}, {'provenance': [{'wikipedia_id': '46788290', 'title': 'Maze Runner: The Death Cure', 'start_paragraph_id': 29, 'start_character': 0, 'end_paragraph_id': 29, 'end_character': 184, 'bleu_score': 0.929712191543383, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13129036569202462026}, 'section': 'Section::::Production.:Filming.\n'}]}]