Instructions: In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.
Input: Question: In what year was the singles chart in which "Sway" reached #6 first begun? Passage:Gimbel was born on November 16, 1927 in Brooklyn, New York, the son of Lottie (Nass) and businessman Morris Gimbel. His parents were Austrian Jewish immigrants. Gimbel was self-taught in music and following initial employment with music publisher David Blum, progressed to become a contract songwriter with Edwin H. Morris Music. Small successes and moderate fame came as a result of lively novelty songs "Ricochet", which was popularized in a 1953 recording by Teresa Brewer from which was developed the 1954 Judy Canova film Ricochet Romance, and "A Whale of a Tale", sung by Kirk Douglas in another 1954 production, Disney's 20,000 Leagues Under the Sea. Greater success was earned with Dean Martin's recording of "Sway", which reached #6 on the UK Singles Chart, followed by his first big success, Andy Williams' rendition of "Canadian Sunset", which scored to #1 in 1956.

Output:
Greater success was earned with Dean Martin's recording of "Sway", which reached #6 on the UK Singles Chart, followed by his first big success, Andy Williams' rendition of "Canadian Sunset", which scored to #1 in 1956