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.

Example Input: Context: In 1999 Solaris unveiled its first city bus of the Urbino family – the Solaris Urbino 12 Link Information: none Answer: none
Example Output: How many cylinders was the engine of the Urbino 12?

Example Input: Context: On January 21, 2019, the Supreme Court — with Chief Justice John Roberts and Justices Samuel Alito, Neil Gorsuch, Brett Kavanaugh and Clarence Thomas forming the majority for the 5-4 opinion Link Information: John Glover Roberts Jr. (born January 27, 1955) Answer: Clarence Thomas
Example Output: Who is the oldest judge that formed the majority opinion on January 21, 2019?

Example Input: Context: he obtained his doctorate in 1926 Link Information: Arnold Johannes Wilhelm Sommerfeld, (; 5 December 1868 – 26 April 1951) Answer: Arnold Sommerfeld
Example Output:
Who was older when Heitler obtained his doctorate, Arnold Sommerfeld or Karl Herzfeld?