TASK DEFINITION: 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'.
PROBLEM: Passage: Jean Barthélemy Claude Toussaint Darmagnac (1 November 1766 – 12 December 1855) became a French division commander during the Napoleonic Wars. In 1791 he joined a volunteer battalion and soon became a captain. He fought with the 32nd Line Infantry Demi-Brigade against the Austrians in Italy. He participated in the French campaign in Egypt and Syria, being promoted to lead the regiment after distinguishing himself at the Battle of the Pyramids. He was badly wounded at Acre and promoted to general of brigade in 1801. Darmagnac fought at Austerlitz in 1805 and led the Paris guard in 1806–1807. Going to Spain, he was wounded at Medina de Rioseco and became a general of division in 1808. After serving as provincial governor, he assumed command of a combat division at Vitoria, the Pyrenees, the Bidassoa, the Nivelle, the Nive, Orthez, and Toulouse. After holding interior commands under the Bourbon Restoration he retired in 1831. His surname is one of the names inscribed under the Arc de Triomphe, on Column 36.
 Link Information: none Question: What was the population of Acre the year that Darmagnac was promoted to general of brigade?

SOLUTION: Answer: none

PROBLEM: Passage: Prettejohn was the Professor of the history of art at the University of Bristol from 2005, before becoming head of the history of art at the University of York in 2012. She has also been the Professor of Modern Art at the University of Plymouth and the curator of Paintings and Sculpture at Birmingham Museum and Art Gallery. She studied at Harvard University, where she got her Bachelor of Arts degree (summa cum laude), and at the Courtauld Institute of Art, where she got her Master of Arts degree in 1987 and PhD degree in 1991. She is married to the Professor of Classics and Dean of Arts, Charles Martindale. 
 Link Information: The University of Bristol is a red brick research university in Bristol, England Question: In what countries did Prettejohn work at universities?

SOLUTION: Answer: England

PROBLEM: Passage: Primus inter pares (, ) is a Latin phrase meaning first among equals. It is typically used as an honorary title for someone who is formally equal to other members of their group, but is accorded unofficial respect, traditionally owing to their seniority in office. Historically, the princeps senatus of the Roman Senate was such a figure and initially bore only the distinction that he was allowed to speak first during debate. Also, Constantine the Great was given the role of primus inter pares. However, the term is also often used ironically or self-deprecatingly by leaders with much higher status as a form of respect, camaraderie, or propaganda. After the fall of the Republic, Roman emperors initially referred to themselves only as princeps despite having power of life and death over their "fellow citizens". Various modern figures such as the chair of the United States Federal Reserve System, the prime minister of parliamentary countries, the federal president of Switzerland, the chief justice of the United States, the chief justice of the Philippines, the archbishop of Canterbury of the Anglican Communion and the ecumenical patriarch of the Eastern Orthodox Church fall under both senses: bearing higher status and various additional powers while remaining still merely equal to their peers in important senses.
 Link Information: Constantine the Great (; ; 27 February AD 272 – 22 May AD 337), also known as Constantine I, was a Roman Emperor who ruled between AD 306 and 337. Question: How long was the reign of the Roman emperor given the role  primus inter pares?

SOLUTION:
Answer: 31