In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

Q: Passage: The Tang dynasty was largely a period of progress and stability in the first half of the dynasty's rule, until the devastating An Lushan Rebellion (755-763) and the decline of central authority in the later half of the dynasty. Like the previous Sui dynasty, the Tang dynasty maintained a civil-service system by recruiting scholar-officials through standardized examinations and recommendations to office. The rise of regional military governors known as jiedushi during the 9th century undermined this civil order. Chinese culture flourished and further matured during the Tang era; it is traditionally considered the greatest age for Chinese poetry. Two of China's most famous poets, Li Bai and Du Fu, belonged to this age, as did many famous painters such as Han Gan, Zhang Xuan, and Zhou Fang. Scholars of this period compiled a rich variety of historical literature, as well as encyclopedias and geographical works. The adoption of the title Tangri Qaghan by the Tang Emperor Taizong in addition to his title as emperor was eastern Asia's first "simultaneous kingship".Many notable innovations occurred under the Tang, including the development of woodblock printing. Buddhism became a major influence in Chinese culture, with native Chinese sects gaining prominence. However, in the 840s the Emperor Wuzong of Tang enacted policies to persecute Buddhism, which subsequently declined in influence. Although the dynasty and central government had gone into decline by the 9th century, art and culture continued to flourish. The weakened central government largely withdrew from managing the economy, but the country's mercantile affairs stayed intact and commercial trade continued to thrive regardless. However, agrarian rebellions in the latter half of the 9th century resulted in damaging atrocities such as the Guangzhou massacre of 878879.
Question: Under what dynasty were the jiedushi created?

A: Tang dynasty.
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Q: Passage: Living in Manhattan, Tom is a cook who has difficulty keeping a steady job. His wife, Sofia, is an attorney. When their first child is born, they agree that she will be a full-time mom and he will work hard to get a promotion. When Tom gets fired after defending his friend Paco, he takes a job in Ohio working at the ad agency where his father-in-law is the assistant director. Tom is assigned to report to Chip. Chip is a strict and hard-working paraplegic man who is coincidentally Sofia's ex-boyfriend from high school. Chip still carries an obsession with her, so he conspires to make Tom's work life miserable. As Tom's frustrations mount, Chip begins to sway Sofia to his side.
Tom begins to suspect that Chip isn't handicapped at all and goes through his desk. He finds a photo of Chip playing tennis and rushes to his in-laws' house to see his wife and show her the picture. He finds Chip having dinner with Sofia and her parents and holding Tom's child. Tom mercilessly tries to prove that Chip isn't actually paralyzed by dragging him up a flight of stairs and then throws him, expecting him to stand up to prevent falling. Chip doesn't stand up and Tom is humiliated in front of his family. Later, he confronts Chip outside his house and attacks him, where Chip reveals that he really can walk, but can't fight outside of his chair. After sitting back down, Chip beats him severely and reveals that he plans to sleep with Sofia, much to Tom's already-increased rage.
Question: Who's wife did the paraplegic man date in high school?

A: Tom.
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Q: Passage: By September 1963, Waters and Mason had lost interest in their studies and moved into the lower flat of Stanhope Gardens, owned by Mike Leonard, a part-time tutor at the Regent Street Polytechnic. Waters, Mason and Wright first played music together in late 1963, in a band formed by vocalist Keith Noble and bassist Clive Metcalfe. They usually called themselves Sigma 6, but also used the name the Meggadeaths. Waters played rhythm guitar and Mason played drums, Wright played any keyboard he could arrange to use, and Noble's sister Sheilagh provided occasional vocals. In the early years the band performed during private functions and rehearsed in a tearoom in the basement of Regent Street Polytechnic.When Metcalfe and Noble left to form their own group in September 1963, the remaining members asked Barrett and guitarist Bob Klose to join. Waters switched to the bass and by January 1964, the group became known as the Abdabs, or the Screaming Abdabs. During late 1964, the band used the names Leonard's Lodgers, Spectrum Five, and eventually, the Tea Set. Sometime during late 1965, the Tea Set began calling itself the Pink Floyd Sound, later the Pink Floyd Blues Band and by early 1966, Pink Floyd.By early 1966, Barrett was Pink Floyd's frontman, guitarist, and songwriter. He wrote or co-wrote all but one track of their debut LP The Piper at the Gates of Dawn, released in August 1967. Waters contributed the song "Take Up Thy Stethoscope and Walk" (his first sole writing credit) to the album. By late 1967, Barrett's deteriorating mental health and increasingly erratic behaviour, rendered him "unable or unwilling" to continue in his capacity as Pink Floyd's singer-songwriter and lead guitarist. In early March 1968 Pink Floyd met with managers Peter Jenner and Andrew King of Blackhill Enterprises to discuss the band's future. Barrett agreed to leave Pink Floyd, and the band "agreed to Blackhill's entitlement in perpetuity" regarding "past activities". The band's new manager Steve O'Rourke made a formal announcement about the departure of Barrett and the arrival of David Gilmour in April 1968.
Question: What is the name of the album to which Waters contributed the song "Take Up Thy Stethoscope and Walk"?

A:
The Piper at the Gates of Dawn.
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