Question: What are the accounting companies that make up the "Big Four" excluding Ernst & Young?

full_context: Document 1: Pearson PLC: Pearson PLC is a British multinational publishing and education company headquartered in London. It was founded as a construction business in the 1840s. It shut down its construction activities in the 1920s and switched to publishing. It is the largest education company and the largest book publisher in the world. Pearson has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. It has a secondary listing on the New York Stock Exchange in the form of American Depository Receipts.
Document 2: Enron scandal: The Enron scandal, publicized in October 2001, eventually led to the bankruptcy of the Enron Corporation, an American energy company based in Houston, Texas, and the "de facto" dissolution of Arthur Andersen, which was one of the five largest audit and accountancy partnerships in the world. In addition to being the largest bankruptcy reorganization in American history at that time, Enron was cited as the biggest audit failure.
Document 3: EY Huset: EY Huset (formerly KPMG-huset) is a building on "Værkmestergade 25" in the Indre By neighborhood in Aarhus, Denmark. It is one of the tallest buildings in Aarhus and Denmark at large. At 68.5 meters it is the fourth tallest building in Aarhus after Aarhus Cathedral, Aarhus City Tower and Ceres Panorama. As of 2017 it is the 16th tallest building in Denmark. EY Huset is a mixed use building with condominiums on the top two floors, offices on the following 10, stores on the next 2 while the bottom 3 are various miscellaneous. The high-rise was built as a part of the commercial department store project Bruun's Galleri. The building is 17 floors tall and is situated directly behind Aarhus Central Station surrounded by buildings that are generally lower.
Document 4: Expert Global Solutions: Founded in 2012, Expert Global Solutions, Inc., ("EGS", formerly NCO Group), based in Plano, Texas, is the world's largest privately owned Business Process Outsourcing company with more than 100 locations globally and more than 40,000 associates. It is a holding company for NCO and APAC Customer Services, Inc. (APAC), providers of global business process outsourcing services. NCO provides accounts receivable management (ARM) services, and APAC provides customer relationship management (CRM) services. EGS has over 100 locations, with more than 42,000 employees. EGS is owned by One Equity Partners (OEP), the private investment arm of JP Morgan Chase & Co.
Document 5: PricewaterhouseCoopers: PricewaterhouseCoopers (doing business as PwC) is a multinational professional services network headquartered in London, United Kingdom. It is the second largest professional services firm in the world, and is one of the Big Four auditors, along with Deloitte, EY and KPMG. Vault Accounting 50 has ranked PwC as the most prestigious accounting firm in the world for seven consecutive years, as well as the top firm to work for in North America for three consecutive years.
Document 6: Ernst &amp; Young: EY (formerly Ernst & Young) is a multinational professional services firm headquartered in London, England. EY is one of the largest professional services firms in the world and is one of the "Big Four" accounting firms.
Document 7: Baker McKenzie: Baker McKenzie, founded as Baker & McKenzie in 1949, is a multinational law firm. s of August 2017 , it is ranked as the second-largest international law firm in the world by headcount with 13,000 employees including 6,076 fee earners and 4,700 lawyers on a full-time equivalent basis in 77 offices across 47 countries. It is also ranked as the second largest law firm in the world in terms of revenue with US$2.67 billion in annual revenue in FY2017. It is the largest international law firm in Asia Pacific, Continental Europe and Latin America. In December 2016 and as part of a major visual identity change, Baker & McKenzie re-branded and dropped the '&' from its name to become Baker McKenzie.
Document 8: Ehrenkrantz Eckstut &amp; Kuhn Architects: Ehrenkrantz Eckstut & Kuhn Architects (EE&K) is an international architectural firm with offices in New York City, Washington DC, Los Angeles, and Shanghai. EE&K’s expertise spans large-scale urban development and infrastructure projects, mixed-use urban development and waterfronts, school and campus design, historic preservation and adaptive re-use.
Document 9: KPMG: KPMG is a professional service company and one of the Big Four auditors, along with Deloitte, Ernst & Young (EY), and PricewaterhouseCoopers (PwC).
Document 10: Enron: Enron Corporation was an American energy, commodities, and services company based in Houston, Texas. It was founded in 1985 as the result of a merger between Houston Natural Gas and InterNorth, both relatively small regional companies. Before its bankruptcy on December 2, 2001, Enron employed approximately 20,000 staff and was one of the world's major electricity, natural gas, communications and pulp and paper companies, with claimed revenues of nearly $101 billion during 2000. "Fortune" named Enron "America's Most Innovative Company" for six consecutive years.
Document 11: Big Four accounting firms: The Big Four are the four largest professional services networks in the world, offering audit, assurance services, taxation, management consulting, advisory, actuarial, corporate finance and legal services. They handle the vast majority of audits for public companies as well as many private companies. It is reported that the Big Four audit 99% of the companies in the FTSE 100, and 96% of the companies in the FTSE 250 Index, an index of the leading mid-cap listing companies.
Document 12: European Business School London: European Business School London (EBS London) is a private Business School in Regent's Park in Central London. It is UK's oldest private business school and a constituent school of Regent's University London.
Document 13: WTP Advisors: WTP Advisors is an international-tax advisory and consultancy firm. Inc. Magazine ranked the company as one of the fastest growing businesses in the United States in 2011, 2012, 2013. The 2012 Inc. 500 and 5000 survey ranked WTP Advisors at 1,184; within the business products and services category, the company ranked 75th. The company was founded in 2005 by Ian Boccaccio, Michael Minihan, David Wain and James Fyhrie all former employees of PricewaterhouseCoopers. The partners saw an opportunity to provide international tax consulting for small and medium businesses and be competitive with the “Big Four” accounting firms: PricewaterhouseCoopers, Ernst & Young, Deloitte Touche Tohmatsu and KPMG.
Document 14: Eugene O'Kelly: Eugene O'Kelly was a former Chairman and CEO of KPMG, one of the largest U. S. accounting firms and one of the Big Four auditors.
Document 15: Arthur Andersen: Arthur Andersen LLP, based in Chicago, is an American holding company and formerly one of the "Big Five" accounting firms among PricewaterhouseCoopers, Deloitte Touche Tohmatsu, Ernst & Young and KPMG, providing auditing, tax, and consulting services to large corporations. In 2002, the firm voluntarily surrendered its licenses to practice as Certified Public Accountants in the United States after being found guilty of criminal charges relating to the firm's handling of the auditing of Enron, an energy corporation based in Texas, which had filed for bankruptcy in 2001.
ground_truth: PricewaterhouseCoopers, Deloitte Touche Tohmatsu