Question: when did the dallas stars win the stanley cup
[{'answer': '1998 -- 99'}, {'provenance': [{'wikipedia_id': '73135', 'title': 'Dallas Stars', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 294, 'bleu_score': 0.839159655341939, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 306564686592796609}, 'section': 'Section::::Abstract.'}]}]