Question: when did the texans come into the nfl
[{'answer': '2002', 'provenance': [{'wikipedia_id': '13864', 'title': 'Houston Texans', 'start_paragraph_id': 7, 'start_character': 44, 'end_paragraph_id': 7, 'end_character': 48, 'bleu_score': 1.0, 'section': 'Section::::Franchise history.\n'}]}]