Question: when did the nashville predators become a team
[{'answer': '1998', 'provenance': [{'wikipedia_id': '73140', 'title': 'Nashville Predators', 'start_paragraph_id': 1, 'start_character': 399, 'end_paragraph_id': 1, 'end_character': 403, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]