instruction:
In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
question:
Passage: In November 1988, a new development team within Microsoft (which included former Digital Equipment Corporation developers Dave Cutler and Mark Lucovsky) began work on a revamped version of IBM and Microsoft's OS/2 operating system known as "NT OS/2". NT OS/2 was intended to be a secure, multi-user operating system with POSIX compatibility and a modular, portable kernel with preemptive multitasking and support for multiple processor architectures. However, following the successful release of Windows 3.0, the NT development team decided to rework the project to use an extended 32-bit port of the Windows API known as Win32 instead of those of OS/2. Win32 maintained a similar structure to the Windows APIs (allowing existing Windows applications to easily be ported to the platform), but also supported the capabilities of the existing NT kernel. Following its approval by Microsoft's staff, development continued on what was now Windows NT, the first 32-bit version of Windows. However, IBM objected to the changes, and ultimately continued OS/2 development on its own.
Link Information: none Question: Which former Digital Equipment Corporation who worked for Microsoft is the oldest?
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Answer: none

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Passage: Amissah-Arthur was born at Cape Coast on 29 April 1951, the capital of the Central Region of Ghana, at the time organized as British Gold Coast Colony. His mother, Effie Amissah-Arthur is from the Hutchful family while his father, Jabesh Richmond P. Amissah-Arthur, an educator was from the Amissah-Arthur family and served as the second and longest serving headmaster of the Oda Secondary School at Akyem-Oda in the Eastern Region from September 1961 to December, 1977. Both families originated from Cape Coast and are of Fante ethnic origin. Kwesi Amissah-Arthur had five other siblings - one brother and four sisters. He attended the Aboom Methodist 'B' Primary School in Cape Coast and passed the Common Entrance examination from the Akim Oda Methodist School in 1964. He completed his secondary education at the Mfantsipim School, where he obtained the GCE Ordinary Level in 1969 and the GCE Advanced Level in 1971. At Mfantsipim, he was a resident of Lockhart-Schweitzer House. He proceeded to the University of Ghana at Legon, where he obtained the B.Sc. in 1974 and M.Sc. in 1976, both in Economics.
Link Information: none Question: How many students currently attend the Mfantsipim School?
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Answer: none

question:
Passage: The Battle of Lexington and Concord was the first conflict in the American Revolutionary War. On April 19, 1775, a force of British Army regulars marched from Boston to Concord to capture a cache of arms that was reportedly stored in the town. Forewarned by Samuel Prescott (who had received the news from Paul Revere), the colonists mustered in opposition. Following an early-morning skirmish at Lexington, where the first shots of the battle were fired, the British expedition under the command of Lt. Col. Francis Smith advanced to Concord. There, colonists from Concord and surrounding towns (notably a highly drilled company from Acton led by Isaac Davis) repulsed a British detachment at the Old North Bridge and forced the British troops to retreat. Subsequently, militia arriving from across the region harried the British troops on their return to Boston, culminating in the Siege of Boston and the outbreak of the war.
Link Information: The Siege of Boston (April 19, 1775 March 17, 1776) Question: How long did the Siege of Boston last?
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Answer: 1