TASK DEFINITION: In this task, you're given a statement, 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: Context: Chen is currently the Malcolm K. Brachman Professor of Economics at Yale University. Link Information: Yale University is a private Ivy League research university in New Haven, Connecticut. Question: In which state is Chen teaching as the Malcolm K. Brachman Professor of Economics?

SOLUTION: Answer: Connecticut

PROBLEM: Context: where it turns eastward and northeastward, flowing across the northern Great Plains past the city of Billings Link Information: none Question: Who is the current mayor of the city located on the northern Great Plains that the Yellowstone River flow through?

SOLUTION: Answer: none

PROBLEM: Context: And in 2011, he was a faculty member on the Hertog Political Studies Program in Washington, D.C. Lynch was granted the Olin Faculty Fellowship to support his work on a new book about Machiavelli's thoughts on war. Additionally, on the 500th anniversary of the writing of Machiavelli's The Prince, Link Information: none Question: How many copies have sold of the book that Lynch discussed at its 500th anniversary in 2011?

SOLUTION:
Answer: none