Question: when was the last time the capitals made it to the conference finals
[{'answer': '2017 -- 18'}, {'provenance': [{'wikipedia_id': '11233387', 'title': 'List of Washington Capitals seasons', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 548, 'bleu_score': 0.856809549332149, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9104561314232429582}, 'section': 'Section::::Abstract.'}]}]