Question: who invented the trigger for the atomic bomb
[{'answer': 'Robert Serber', 'provenance': [{'wikipedia_id': '11148129', 'title': 'Dayton Project', 'start_paragraph_id': 7, 'start_character': 25, 'end_paragraph_id': 7, 'end_character': 38, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'provenance': [{'wikipedia_id': '11148129', 'title': 'Dayton Project', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 594, 'bleu_score': 0.9421819794383921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9626022817733490528}, 'section': 'Section::::Background.\n'}]}]