Question: how many seasons were there of third watch
[{'answer': '6', 'provenance': [{'wikipedia_id': '921548', 'title': 'Third Watch', 'start_paragraph_id': 1, 'start_character': 154, 'end_paragraph_id': 1, 'end_character': 155, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]