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'.

Q: Passage: Gawler was born in Adelaide, South Australia, to Caroline (nee Philpot) and Henry Gawler. His grandfather, George Gawler, was the second Governor of South Australia. Gawler attended St Peter's College, Adelaide, and then studied law at the University of Adelaide. Gawler was called to the bar in South Australia in 1886, and left for Western Australia later that year, establishing his own firm in Perth. At one time, he was in partnership with Robert Bruce Burnside, a future Supreme Court justice. Having previously served on the Peppermint Grove Road Board for a period, Gawler was elected to parliament at a 1910 Legislative Council by-election, which had been caused by the resignation of Walter Kingsmill. He died in office in May 1915 (aged 54), of typhoid fever. He had married Eva Mary Waldeck in 1893, with whom he had four children.
Link Information: Perth ( ) is the capital and largest city of the Australian state of Western Australia (WA). It is named after the city of Perth, Scotland and is the fourth-most populous city in Australia, with a population of 2.06 million living in Greater Perth. Question: What is the population of the town where Gawler established his own firm?

A: Answer: 2.06 million
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Q: Passage: During the reign of King Edward the Confessor a lady called Elviva (probably a Latin rendering of the Old English name lfgifu), held the manor of Ambrosden. The Domesday Book records that by 1086 she had been replaced by Hugh d'Ivry, butler of William the Conqueror and brother of Roger d'Ivry, who owned several manors in Oxfordshire. Hugh's nephew Roger II d'Ivry inherited Ambrosden and by 1194 it was part of the Honour of St. Valery. Ambrosden thus passed to Edmund, 2nd Earl of Cornwall, who in 1288 gave the manor to Ashridge Priory of the Augustinian order of the Brothers of Penitence. Ashridge Priory retained Ambrosden until the priory was dissolved in 1539 in the Dissolution of the Monasteries.
Link Information: none Question: How long did Elviva hold the manor before being replaced?

A: Answer: none
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Q: Passage: Benjamin Powell earned his B.S. in Economics and Finance from the University of Massachusetts Lowell and his M.A. and Ph.D. in economics from George Mason University. He is a Professor of Business Economics at Texas Tech University's Rawls College of Business and the director of the Free Market Institute at Texas Tech University. Previously, he was an Associate Professor of Economics at Suffolk University and an Assistant Professor of Economics at San Jose State University. He has performed numerous other professional roles in the past including Director of the Center on Entrepreneurial Innovation at the Independent Institute., President of Association of Private Enterprise Education, North American Editor of the Review of Austrian Economics, Senior Economist at the Beacon Hill Institute, Editorial Board Member at the Journal of Private Enterprise, and host and co-executive producer of KTTZ Channel 5 Lubbock'sa PBS affiliateFree to Exchange.
Link Information: his M.A. and Ph.D. in economics from George Mason University. Question: In which state did Powell earn his M.A. and Ph.D in economics?

A:
Answer: Virginia
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