Question: when did the original 6 nhl teams start
[{'answer': '1942', 'provenance': [{'wikipedia_id': '335180', 'title': 'Original Six', 'start_paragraph_id': 1, 'start_character': 120, 'end_paragraph_id': 1, 'end_character': 124, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]