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: 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

A: Which person was the lead singer of the Yardbirds the longest?
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Q: Context: announced on Facebook that "Tropico" will be screened at the Cinerama Dome in Hollywood, California on December 4, 2013 prior to its VEVO release. Link Information: it opened November 7, 1963 Answer: 1963

A: What year was the Dome built?
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Q: Context: The year 2007 saw Dessay premiering Laurent Pelly's production of La fille du régiment at the London Royal Opera House in January and the Vienna State Opera in April Link Information: none Answer: none

A:
Did the production of La fille du regiment have more shows at the Royal Opera House or at the Vienna State Opera?
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