Question: Which distinguished person of the Microsoft Corporation did Steven Sebring do a portraiture of?

Context paragraphs:
Microsoft Inspire: Microsoft Inspire, (formerly the Microsoft Worldwide Partner Conference, and previously abbreviated WPC), is a conference held annually by Microsoft Corporation for its partner community.  At Inspire, partners learn about Microsoft’s roadmap for the upcoming year, network and build connections, share best practices, experience the latest product innovations, and learn new skills and techniques There are also keynote addresses from Microsoft executives, featured speakers, business-track specific offerings, and hundreds of sessions.

Patti Smith: Dream of Life: Patti Smith: Dream of Life is a 2008 documentary film about Patti Smith directed by Steven Sebring.  It was presented at Berlin International Film Festival.  The movie won the "Excellence in Cinematography Award: Documentary" at the 2008 Sundance Film Festival and aired on the PBS series P.O.V. on December 30, 2009.

Steven Sebring: Steven Sebring (born 1966) photographer, filmmaker and multimedia artist, is known for a distinctive style that merges raw realism with high-end fashion.  His distinguished celebrity and rock n' roll portraiture including the faces of Patti Smith, Neil Young, Joey Ramone, Alec Baldwin, Phillip Glass, JFK Jr. , and Bill Gates, have been seen internationally through Vogue, Vanity Fair, GQ, and ELLE.  Over the past two decades, Sebring has photographed and directed international campaigns for brands as diverse as MAC, Joe Fresh, Reed Krakoff, Ralph Lauren, Maybelline, DKNY and Coach to name a few.

Microsoft India: Microsoft India Private Limited is a subsidiary of American software company Microsoft Corporation, headquartered in Hyderabad, India.  The company first entered the Indian market in 1990 and has since worked closely with the Indian government, the IT industry, academia and the local developer community to usher in some of the early successes in the IT market.  Microsoft currently has offices in the 9 cities of Ahmedabad, Bangalore, Chennai, Hyderabad, Kochi, Kolkata, Mumbai, the NCR (New Delhi and Gurgaon) and Pune.  Increasingly, the company has become a key IT partner of the Indian government and industry, supporting and fueling the growth of the local IT industry through its partner enablement programs.  Since its entry into India, Microsoft has focused on three key objectives:

Microsoft: Microsoft Corporation ( , abbreviated as MS) is an American multinational technology company with headquarters in Redmond, Washington.  It develops, manufactures, licenses, supports and sells computer software, consumer electronics, personal computers, and services.  Its best known software products are the Microsoft Windows line of operating systems, the Microsoft Office suite, and the Internet Explorer and Edge web browsers. Its flagship hardware products are the Xbox video game consoles and the Microsoft Surface tablet lineup.  As of 2016, it is the world's largest software maker by revenue, and one of the world's most valuable companies.  The word "Microsoft" is a portmanteau of "microcomputer" and "software".

Trebuchet MS: Trebuchet MS is a sans-serif typeface designed by Vincent Connare for the Microsoft Corporation in 1996.  It is named after the trebuchet, a medieval siege engine.  The name was inspired by a puzzle question that Connare heard at Microsoft headquarters: "Can you make a trebuchet that could launch a person from main campus to the new consumer campus about a mile away?  Mathematically, is it possible and how?"  Connare "thought that would be a great name for a font that launches words across the Internet".  Trebuchet MS was the font used for the window titles in the Windows XP default theme, succeeding MS Sans Serif and Tahoma.  Released freely by Microsoft as part of their core fonts for the Web package, it remains one of the most popular body text fonts on webpages.

Barbarians Led by Bill Gates: Barbarians Led by Bill Gates: Microsoft from the Inside is a book that was jointly written by Jennifer Edstrom and Marlin Eller, an American programmer who was a manager and a software developer at Microsoft Corporation from 1982–95, and development lead for the Graphics Device Interface (GDI) of Windows 1.0 and also for Pen Windows.  Written as a third-person account of Eller's experiences at Microsoft, it goes into detail about the early years of Microsoft and its emergence as a massive corporation.

United States v. Microsoft Corp.: United States v. Microsoft Corporation 253 F.3d 34 (D.C. Cir.  2001) is a U.S. antitrust law case, ultimately settled by the Department of Justice, where Microsoft Corporation was accused of becoming a monopoly and engaging in anti-competitive practices contrary to the 1890 Sherman Antitrust Act sections 1 and 2.

Bill Gates: William Henry Gates III (born October 28, 1955) is a co-founder of the Microsoft Corporation and is an American business magnate, investor, author and philanthropist.

Microsoft Forefront: Microsoft Forefront is a discontinued family of line-of-business security software by Microsoft Corporation.  Microsoft Forefront products are designed to help protect computer networks, network servers (such as Microsoft Exchange Server and Microsoft SharePoint Server) and individual devices.  As of 2015, the only actively developed Forefront product is Forefront Identity Manager.

Supporting paragraphs: Steven Sebring Bill Gates
Answer: Bill Gates