Question: who designed the staged radiation implosion model of the hydrogen bomb
[{'answer': 'Klaus Fuchs', 'provenance': [{'wikipedia_id': '1599733', 'title': 'Radiation implosion', 'start_paragraph_id': 3, 'start_character': 43, 'end_paragraph_id': 3, 'end_character': 54, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'answer': 'John von Neumann', 'provenance': [{'wikipedia_id': '1599733', 'title': 'Radiation implosion', 'start_paragraph_id': 3, 'start_character': 59, 'end_paragraph_id': 3, 'end_character': 75, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '1599733', 'title': 'Radiation implosion', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 670, 'bleu_score': 0.9828310228624961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3082170848598084198}, 'section': 'Section::::History.\n'}]}]