Question: which mineral of sulphur is known as fool's gold
[{'answer': 'pyrite', 'provenance': [{'wikipedia_id': '45756', 'title': 'Pyrite', 'start_paragraph_id': 1, 'start_character': 12, 'end_paragraph_id': 1, 'end_character': 18, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '45756', 'title': 'Pyrite', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 197, 'bleu_score': 0.83851300471302, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2542117616313770712}, 'section': 'Section::::Abstract.'}]}]