instruction:
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.
question:
Question: Who were the other members of the band that Patrick and Bill both left? Passage:Flags is a 1985 album by the duo Moraz-Bruford. Unlike their prior effort Music for Piano and Drums, which featured only an acoustic drum kit and grand piano, this recording expanded their musical palette by including a Kurzweil 250 synthesizer and electronic percussion. Keyboardist Patrick Moraz and drummer Bill Bruford had both previously been members of the progressive rock band Yes (though at different points in time) and also appeared together on Chris Squire's first solo album Fish Out of Water. During the recording of this album, Moraz was a member of The Moody Blues, while Bruford's band King Crimson had just begun a hiatus that would last for ten years. Flags features ten instrumental works, including a drum solo based on Max Roach's "The Drum Also Waltzes".

answer:
b

question:
Question: In what year was the royal house's name change? Passage:The programme explores the lives of King George V and Queen Mary, and their attempts at modernising the British Monarchy in response to the massive social changes during and following World War I. The first episode recalls how, fearing anti-German sentiment, the royal house name was changed by King George from the House of Saxe-Coburg and Gotha to the House of Windsor. The series also examines the personal lives of the couple, delving into their relationships with their children, and with each other. The marriage between George and Mary was an arranged marriage, occurring only because Prince Albert Victor, George's brother and Mary's original fiance, died from influenza. George V is presented in the series as a disciplinarian, who strictly punished his children, but was known to be much more loving to his granddaughter, Queen Elizabeth II.

answer:
b

question:
Question: How much did the Royal Free Hospital charge patients the year Beck started working there? Passage:Diana Beck was born in 1900 in Hoole, Chester, to James Beck, a tailor, and Margaret Helena Kinloch. She attended The Queen's School before studying medicine at the London School of Medicine for Women, where she won two prizes and a scholarship. After graduating in 1925, she worked at the Royal Free Hospital as a house surgeon and then a surgical registrar throughout the 1930s. She chose to specialise in neurosurgery and trained under Hugh Cairns at the Radcliffe Infirmary in Oxford, where she also acted as a general surgeon providing treatment to injured soldiers during the war. In 1939, she was awarded the William Gibson Research Scholarship for Medical Women by the Royal Society of Medicine, and used the grant to undertake research in Oxford with Dorothy Stuart Russell. Using animal experiments, they investigated the causes of idiopathic intracranial hypertension and experimented with various graft materials for cranioplasty.

answer:
b