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.

Context: They served on opposite sides of the American Civil War: Meagher serving with the Union, Link Information: John Mitchel (; 3 November 1815 Answer: 46
How old was Mitchel when the event where he served with the Union began?

Context: and great-grandson of Revolutionary War general James Kenan Link Information: James Kenan was born on September 23, 1740 at the family plantation, The Lilacs, in Turkey, Sampson County, North Carolina. Answer: North Carolina
Where was Thomas Kenan's great grandfather born?

Context: The Mosel is mainly famous for its wines made from the Riesling grape, but Elbling and Muller-Thurgau also contribute to the production Link Information: s of 2006, there were 583 ha of Elbling vineyards in Germany, which made it the country's 23rd most grown variety of grape. Of that vineyard surface, 575 ha or 98.6% was found in the Mosel region Answer: Elbling
Which grape is used to make the least wine in Mosel?