Question: when was season 2 of this is us filmed
[{'answer': 'July 11 , 2017', 'provenance': [{'wikipedia_id': '55143891', 'title': 'This Is Us (season 2)', 'start_paragraph_id': 53, 'start_character': 148, 'end_paragraph_id': 53, 'end_character': 162, 'bleu_score': 1.0, 'section': 'Section::::Production.:Filming.\n'}]}, {'provenance': [{'wikipedia_id': '55143891', 'title': 'This Is Us (season 2)', 'start_paragraph_id': 53, 'start_character': 0, 'end_paragraph_id': 53, 'end_character': 177, 'bleu_score': 0.9364250605898111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6099762306312241474}, 'section': 'Section::::Production.:Filming.\n'}]}]