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'.

Context: and rose to international prominence serving as a chief member of the 1876 Philadelphia Exposition, Link Information: The Centennial Commission turned to third-place winner's architect Henry Pettit and engineer Joseph M. Wilson for design and construction of the Main Exhibition Building. A temporary structure, the Main Building was the largest building in the world by area, enclosing 21.5 acre. Question: What building was the 1876 Philadelphia Exposition held at?
Answer: the Main Exhibition Building

Context: From 1916 to 1922, Thomson served on the Seattle city council, Link Information: none Question: How many people lived in Wenatchee the year Thomson left the Seattle city council?
Answer: none

Context: Coins minted during both the Merovingian and the Carolingian dynasties have been found. Link Information: On gold coins struck in his royal workshop Question: What material were coins used by the Merovingian dynasty made from?

Answer: gold