Question: when did nhl home teams start wearing dark jerseys
[{'answer': '2003', 'provenance': [{'wikipedia_id': '10228279', 'title': 'NHL uniform', 'start_paragraph_id': 5, 'start_character': 357, 'end_paragraph_id': 5, 'end_character': 361, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'provenance': [{'wikipedia_id': '10228279', 'title': 'NHL uniform', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 602, 'bleu_score': 0.879971110776501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 589297816913202327}, 'section': 'Section::::Background.\n'}]}]