Question: how many season of the boondocks are there
[{'answer': 'four', 'provenance': [{'wikipedia_id': '2492722', 'title': 'The Boondocks (TV series)', 'start_paragraph_id': 2, 'start_character': 116, 'end_paragraph_id': 2, 'end_character': 120, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2492722', 'title': 'The Boondocks (TV series)', 'start_paragraph_id': 2, 'start_character': 5, 'end_paragraph_id': 2, 'end_character': 338, 'bleu_score': 0.7834439044168701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 850411584411177641}, 'section': 'Section::::Abstract.'}]}]