Question: how much of the world's vanilla comes from madagascar
[{'answer': '37 %'}, {'provenance': [{'wikipedia_id': '32623', 'title': 'Vanilla', 'start_paragraph_id': 77, 'start_character': 0, 'end_paragraph_id': 77, 'end_character': 280, 'bleu_score': 0.756640884290769, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2744291624298955328}, 'section': 'Section::::Production.\n'}]}]