Question: where does the smell of vanilla come from
[{'answer': 'phenolic compounds crystallize', 'provenance': [{'wikipedia_id': '32623', 'title': 'Vanilla', 'start_paragraph_id': 18, 'start_character': 95, 'end_paragraph_id': 18, 'end_character': 125, 'bleu_score': 1.0, 'section': 'Section::::Biology.:Vanilla orchid.\n'}]}, {'answer': 'as it dries', 'provenance': [{'wikipedia_id': '32623', 'title': 'Vanilla', 'start_paragraph_id': 18, 'start_character': 78, 'end_paragraph_id': 18, 'end_character': 89, 'bleu_score': 1.0, 'section': 'Section::::Biology.:Vanilla orchid.\n'}]}, {'provenance': [{'wikipedia_id': '32623', 'title': 'Vanilla', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 442, 'bleu_score': 0.972782728923768, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13216431138526923135}, 'section': 'Section::::Biology.:Vanilla orchid.\n'}]}]