Question: how many seasons of the brady bunch were there
[{'answer': 'five', 'provenance': [{'wikipedia_id': '39732', 'title': 'The Brady Bunch', 'start_paragraph_id': 1, 'start_character': 279, 'end_paragraph_id': 1, 'end_character': 283, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '39732', 'title': 'The Brady Bunch', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 554, 'bleu_score': 0.9346616214552951, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11625216020234942532}, 'section': 'Section::::Abstract.'}]}]