Question: when did call me by your name start filming
[{'answer': 'May 9 , 2016', 'provenance': [{'wikipedia_id': '50731291', 'title': 'Call Me by Your Name (film)', 'start_paragraph_id': 39, 'start_character': 31, 'end_paragraph_id': 39, 'end_character': 43, 'bleu_score': 1.0, 'section': 'Section::::Production.:Principal photography.\n'}]}, {'provenance': [{'wikipedia_id': '50731291', 'title': 'Call Me by Your Name (film)', 'start_paragraph_id': 39, 'start_character': 0, 'end_paragraph_id': 39, 'end_character': 566, 'bleu_score': 0.5108515508638021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13036147490579310191}, 'section': 'Section::::Production.:Principal photography.\n'}]}]