Question: who calculated the volume of pyramids and cones
[{'answer': 'Cavalieri', 'provenance': [{'wikipedia_id': '21697672', 'title': "Cavalieri's principle", 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '21697672', 'title': "Cavalieri's principle", 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 540, 'bleu_score': 0.9461462299376011, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12802647370608063636}, 'section': 'Section::::Examples.:Cones and pyramids.\n'}]}]