Question: what is brazil the world's leading producer of
[{'answer': 'beans', 'provenance': [{'wikipedia_id': '8477116', 'title': 'Agriculture in Brazil', 'start_paragraph_id': 1, 'start_character': 200, 'end_paragraph_id': 1, 'end_character': 205, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8477116', 'title': 'Agriculture in Brazil', 'start_paragraph_id': 164, 'start_character': 0, 'end_paragraph_id': 164, 'end_character': 236, 'bleu_score': 0.950578622812921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17676653936541725710}, 'section': 'Section::::Products.:Beans.\n'}]}]