Question: who were the original big 8 accounting firms
[{'answer': 'Arthur Andersen', 'provenance': [{'wikipedia_id': '38798', 'title': 'Big Four accounting firms', 'start_paragraph_id': 5, 'start_character': 174, 'end_paragraph_id': 5, 'end_character': 189, 'bleu_score': 1.0, 'section': 'Section::::List.\n'}]}, {'answer': 'Arthur Young', 'provenance': [{'wikipedia_id': '38798', 'title': 'Big Four accounting firms', 'start_paragraph_id': 22, 'start_character': 453, 'end_paragraph_id': 22, 'end_character': 465, 'bleu_score': 1.0, 'section': 'Section::::Mergers and the big auditors.:Big Eight.\n'}]}, {'answer': 'Coopers and Lybrand', 'provenance': [{'wikipedia_id': '38798', 'title': 'Big Four accounting firms', 'start_paragraph_id': 16, 'start_character': 12, 'end_paragraph_id': 16, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Mergers and the big auditors.:Big Eight.\n'}]}, {'answer': 'Ernst & Whinney', 'provenance': [{'wikipedia_id': '38798', 'title': 'Big Four accounting firms', 'start_paragraph_id': 22, 'start_character': 563, 'end_paragraph_id': 22, 'end_character': 578, 'bleu_score': 1.0, 'section': 'Section::::Mergers and the big auditors.:Big Eight.\n'}]}, {'answer': 'Deloitte Haskins & Sells', 'provenance': [{'wikipedia_id': '38798', 'title': 'Big Four accounting firms', 'start_paragraph_id': 22, 'start_character': 526, 'end_paragraph_id': 22, 'end_character': 550, 'bleu_score': 1.0, 'section': 'Section::::Mergers and the big auditors.:Big Eight.\n'}]}, {'answer': 'Peat Marwick Mitchell', 'provenance': [{'wikipedia_id': '38798', 'title': 'Big Four accounting firms', 'start_paragraph_id': 22, 'start_character': 269, 'end_paragraph_id': 22, 'end_character': 290, 'bleu_score': 1.0, 'section': 'Section::::Mergers and the big auditors.:Big Eight.\n'}]}, {'answer': 'Price Waterhouse', 'provenance': [{'wikipedia_id': '38798', 'title': 'Big Four accounting firms', 'start_paragraph_id': 22, 'start_character': 129, 'end_paragraph_id': 22, 'end_character': 145, 'bleu_score': 1.0, 'section': 'Section::::Mergers and the big auditors.:Big Eight.\n'}]}, {'answer': 'Touche Ross', 'provenance': [{'wikipedia_id': '38798', 'title': 'Big Four accounting firms', 'start_paragraph_id': 22, 'start_character': 432, 'end_paragraph_id': 22, 'end_character': 443, 'bleu_score': 1.0, 'section': 'Section::::Mergers and the big auditors.:Big Eight.\n'}]}]