Question: how many seasons of the rugrats are there
[{'answer': '9', 'provenance': [{'wikipedia_id': '2647814', 'title': 'List of Rugrats episodes', 'start_paragraph_id': 2, 'start_character': 44, 'end_paragraph_id': 2, 'end_character': 45, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '9 seasons', 'provenance': [{'wikipedia_id': '2647814', 'title': 'List of Rugrats episodes', 'start_paragraph_id': 2, 'start_character': 1103, 'end_paragraph_id': 2, 'end_character': 1112, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2647814', 'title': 'List of Rugrats episodes', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 1133, 'bleu_score': 0.9087833755748831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12643636497183090102}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2647814', 'title': 'List of Rugrats episodes', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['The final episode aired on August 1, 2004, bringing the series to a total of 172 episodes and 9 seasons during a 13-year run.', '9 seasons during a 13-year run.']}}]}, {'provenance': [{'wikipedia_id': '2647814', 'title': 'List of Rugrats episodes', 'section': 'Section::::Abstract.', 'start_paragraph_id': 3, 'end_paragraph_id': 3, 'meta': {'evidence_span': ['bringing the series to a total of 172 episodes and 9 seasons during a 13-year run.', '9 seasons during a 13-year run']}}]}]