Definition: In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: Who founded the record label that signed the group in 1956? Passage:The group was signed to Mercury in 1956, and were also spotted by film producer Sam Katzman. He offered them a part in Rock Around the Clock, the first rock and roll movie, starring Bill Haley. The first single for their new label was shared with Jerry Wallace, who later hit with "How The Time Flies" on Challenge. This record, on the Mercury subsidiary Wing Records was "I Said It And I'm Glad" b/w Jerry Wallace, "Eyes Of Fire Lips Of Wine", which was released February 27, 1956. Their second single was released on the same date. The A-side "Ding Dong", was written by Bell and his friend Pep Lattanzi in 1953. Later known as "Giddy Up a Ding Dong", it was not a hit in the United States, but it was popular in Australia, France, and the UK, where it climbed to number four in the UK Singles Chart. The publicity for the single said, "If these sides don't move you, see a doctor – you're dead." The lyrics to the song are about a horse ride, with a definite western flavor, with the music having a loping, horse like cadence. The group also appeared in the 1956 film, Rumble on the Docks. In 1957, they became one of the first American rock and roll acts to tour the UK in 1956 when they supported Tommy Steele.


b