Question: when is the last time arsenal won a trophy
[{'answer': '2016', 'provenance': [{'wikipedia_id': '7732042', 'title': 'History of Arsenal F.C. (1966–present)', 'start_paragraph_id': 84, 'start_character': 113, 'end_paragraph_id': 84, 'end_character': 117, 'bleu_score': 1.0, 'section': 'Section::::Three FA Cups in four years (2013–17).\n'}]}, {'provenance': [{'wikipedia_id': '7732042', 'title': 'History of Arsenal F.C. (1966–present)', 'start_paragraph_id': 84, 'start_character': 0, 'end_paragraph_id': 84, 'end_character': 1158, 'bleu_score': 0.9897694846447971, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5404302409873576875}, 'section': 'Section::::Three FA Cups in four years (2013–17).\n'}]}]