Question: what would need to happen to change a lead atom into a gold atom
[{'answer': 'nuclear transmutation', 'provenance': [{'wikipedia_id': '27739443', 'title': 'Nuclear transmutation', 'start_paragraph_id': 1, 'start_character': 242, 'end_paragraph_id': 1, 'end_character': 263, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '27739443', 'title': 'Nuclear transmutation', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 421, 'bleu_score': 0.972407137066537, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7942853091034827747}, 'section': 'Section::::History.:Modern physics.\n'}]}]