Question: albinism is due to the inability to make
[{'answer': 'melanin', 'provenance': [{'wikipedia_id': '45105839', 'title': 'Albinism', 'start_paragraph_id': 20, 'start_character': 178, 'end_paragraph_id': 20, 'end_character': 185, 'bleu_score': 1.0, 'section': 'Section::::Definition.\n'}]}]