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.

[EX Q]: Context: A month later, Weiss released Into It Over It's first studio album, Proper on No Sleep Records, produced by Ed Rose. Link Information: none Answer: none
[EX A]: How many albums did the producer of "Proper" produce?

[EX Q]: Context: the group originally included lead vocalist Keith Relf Link Information: The Yardbirds are an English blues rock band from London. Formed in May 1963, the group originally included lead vocalist Keith Relf Answer: Robert Plant
[EX A]: Which person was the lead singer of the Yardbirds the longest?

[EX Q]: Context: He played the role of Loge in Richard Wagner's Das Rheingold at Munich Court Opera Link Information: He also played the role of Siegmund in Wagner's Die Walküre Answer: Das Rheingold
[EX A]:
Of the Wagner operas that Vogl had roles in, which was written first?