Question: when did the tampa bay rays become a team
[{'answer': '1998', 'provenance': [{'wikipedia_id': '18293060', 'title': 'Tampa Bay Rays', 'start_paragraph_id': 2, 'start_character': 263, 'end_paragraph_id': 2, 'end_character': 267, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18293060', 'title': 'Tampa Bay Rays', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 296, 'bleu_score': 0.9603762111511761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5853392627529854128}, 'section': 'Section::::Abstract.'}]}]