Definition: In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: Which drummer stayed with the band longer, Hudson or Hutchinson? Passage:Casser lived in Liverpool in the late 1950s, having previously worked in the Merchant Navy. As singer and rhythm guitarist, he formed a trio, Cass & the Cassanovas, in May 1959, with singer and guitarist Adrian Barber (born 13 November 1938, Ilkley, Yorkshire), and drummer and singer Brian J. Hudson (born Brian James Hudson, 21 April 1938, Cleveland, Yorkshire). After a few months, Hudson left and was replaced by Johnny Hutchinson (born 18 July 1940, Malta), known as Johnny Hutch. In need of a bass guitarist, Hutchinson then brought in Johnny Gustafson (born 8 August 1942, Liverpool) in December 1959. At that time Gustafson did not have a proper bass guitar so Barber converted an acoustic for him. The group became popular playing a wide range of music, from Latin American music to rock and roll, in dance halls in the Liverpool area. Casser also started his own music club in Liverpool, the Casanova Club, whose guest groups included one known at the time as the "Silver Beetles"; according to some reports, Casser had suggested that they change their name from the earlier spelling of "Beatals" which Casser found "ridiculous". In May 1960 Cass & the Cassanovas took part in auditions in front of leading manager Larry Parnes who was looking for backing bands for his stable of pop singers. The group secured a place as backing group for singer Duffy Power and toured with him. By this time, Casser had begun using the stage names of "Casey Jones" and "Casey Valence".


b