Question: what is the number one cash crop in the united states
[{'answer': 'soybeans', 'provenance': [{'wikipedia_id': '242778', 'title': 'Agriculture in the United States', 'start_paragraph_id': 11, 'start_character': 367, 'end_paragraph_id': 11, 'end_character': 375, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '242778', 'title': 'Agriculture in the United States', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 481, 'bleu_score': 0.977397480575333, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17976278171285507030}, 'section': 'Section::::History.\n'}]}]