In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.

[Q]: Context: Alcides Escobar hit a one-out homer to left to give the Royals a 1–0 lead. Later in the inning, with the bases loaded Link Information: On December 18, 2010, the Brewers traded Escobar, Lorenzo Cain, Jeremy Jeffress, and Jake Odorizzi to the Kansas City Royals Answer: December 18, 2010
[A]: When did Escobar start playing for the Royals?


[Q]: Context: In 1994, Green joined his brother Barry's Team Green as team manager, and competed in the 1994 CART IndyCar World Series with driver Jacques Villeneuve Link Information: none Answer: none
[A]: How many other drivers competed in the CART IndyCar World Series the year that Green joined his brother Barry's Team Green as team manager?


[Q]: Context: After beginning study in several universities in Germany, he emigrated to the United States in 1937 Link Information: none Answer: none
[A]:
How many people lived in the United States the year that Barschall emigrated to the country?