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: What state was Chicago part of in the 1920s? Passage:He was born in Chicago, and moved to New York City in the early 1920s. He began working as a session pianist with singer Ethel Waters, who sang his first recorded song as a writer, "You Can't Do What My Last Man Did" in 1923. He then diversified into songwriting, working with lyricists including Henry Creamer and Andy Razaf. Waters recorded several more J.C. Johnson songs and collaborations, including the first version of "Trav'lin All Alone", subsequently recorded by dozens of artists including Billie Holiday and Billy Eckstine. By 1928 he had begun working with Fats Waller, often contributing lyrics to Waller's music. His first song with Waller was "I'm "Goin Huntin", written in 1927 and recorded by Louie Armstrong, and together they wrote a Broadway show, Keep Shufflin'. (The preceding information is wrong. It was James P. Johnson who co-wrote "Keep Shufflin" with Fats Waller. See: James P. and J.C. were often confused for each other, and were friends via Fats Waller. The above illustrates how James P. and J.C. continue to be confused with each other.)About this time, he also reportedly used the pseudonym Harry Burke, who was originally credited as the writer of the song "Me and My Gin", recorded in 1928 by Bessie Smith and later recorded by many artists under the title "Gin House Blues" (with the composition later often credited, apparently in error, to Fletcher Henderson). In 1929, he took part as a musician in a collaboration between Italian-American guitarist Eddie Lang and the blues guitarist Lonnie Johnson, together with King Oliver and Hoagy Carmichael, which was given the name "Blind Willie Dunn & His Gin Bottle Four" in order to disguise the inter-racial nature of the group. Among the many artists in the 20s and 30s who sang and recorded his tunes were Ella Fitzgerald, whose first three recorded songs were co-written by Johnson, Connie Boswell, Mamie Smith, Clarence Williams, and Lonnie Johnson. J.C. also had his own band, J.C. Johnson and his Five Hot Sparks and played piano on many other artists' recordings.


b