Question: where is most of the atoms volume found
[{'answer': 'nucleus', 'provenance': [{'wikipedia_id': '19916559', 'title': 'Atomic nucleus', 'start_paragraph_id': 0, 'start_character': 7, 'end_paragraph_id': 0, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19916559', 'title': 'Atomic nucleus', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 659, 'bleu_score': 0.7839387755040771, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8083261808101340198}, 'section': 'Section::::Abstract.'}]}]