Question: where is most farming done in the us
[{'answer': 'Great Plains', 'provenance': [{'wikipedia_id': '242778', 'title': 'Agriculture in the United States', 'start_paragraph_id': 1, 'start_character': 307, 'end_paragraph_id': 1, 'end_character': 319, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '242778', 'title': 'Agriculture in the United States', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 496, 'bleu_score': 0.669566022726883, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7370990058203767621}, 'section': 'Section::::Abstract.'}]}]