Question: how many bricks did it take to build the great pyramid of giza
[{'answer': 'estimated 2.3 million', 'provenance': [{'wikipedia_id': '12224', 'title': 'Great Pyramid of Giza', 'start_paragraph_id': 10, 'start_character': 33, 'end_paragraph_id': 10, 'end_character': 54, 'bleu_score': 1.0, 'section': 'Section::::Materials.\n'}]}, {'provenance': [{'wikipedia_id': '12224', 'title': 'Great Pyramid of Giza', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 851, 'bleu_score': 0.802911077577324, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13294465095640809305}, 'section': 'Section::::Materials.\n'}]}]