Question: what year did the nhl switch to dark jerseys at home
[{'answer': 'the 2003 -- 04 season'}, {'provenance': [{'wikipedia_id': '10228279', 'title': 'NHL uniform', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 602, 'bleu_score': 0.8883516779748231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4605680784622052973}, 'section': 'Section::::Background.\n'}]}]