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: 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: s shown on the map of Belgrade by Nicolas François de Spar, the Tsarigrad Road began at the Württemberg Gate (Stambol Gate), Link Information: none Answer: none
[A]: When was the Stambol Gate built?


[Q]: Context: In 1973, Esaki received the Nobel Prize in Physics Link Information: none Answer: none
[A]:
How many Nobel Prizes in Physics were awarded before it was given to Leo Esaki?