input: By the 1860s it was recognised that musical standards in the choir needed improvement.John Jebb's 1843 enquiry into Anglican choirs found that "in Cambridge, the Choral Service has suffered mutilation in every place where it is retained. King's College has reduced the original number of its Conduct Chaplains from three to one; and though retaining its sixteen Choristers (which evidently were intended to be proportionate to a more numerous body of adult singers), there are but a small number of Clerks, too weak for the magnificent organ which accompanies them, and for the unrivalled Chapel where they minister. The Choir indeed attends twice daily; but the prayers are not chanted (a very modern innovation), and at the Sunday morning service the Nicene Creed is not sung.". Amongst the lay clerks, whose duties were at this time divided by also singing at Trinity, indiscipline and absenteeism were common.  Reform began after the passing of the Cambridge University Act 1856, which enabled the statutes and governance of the college to be altered. Two chaplains and twelve lay clerks were specified, and sharing duties with Trinity was ended in 1871. The same year a new Master over the Choristers was appointed, who was tasked with being "watchful of their moral conduct" and "maintaining disciple without undue severity at all times". Conditions for choristers were improved with the intention of recruiting boys from a higher social background. They were given instruction in instrumental music and financial assistance upon leaving.  To further widen the field for selection it was decided to open a boarding school instead of paying for choristers to be lodged with local families. From 1876 it was decreed that choristerships should be open to all candidates "whether resident in Cambridge or elsewhere" with those resident outside the city lodged at the expense of the college, and a purpose-built King's College School was opened two years later. Also in 1876 it was decided that choral scholarships were to be awarded, with students replacing the permanently employed lay clerks. Existing contracts meant this was a slow process, with the last clerk leaving in 1928.  1876 also saw the appointment of a new organist on an increased salary, Arthur Henry Mann. There was little if any formal training of choir instructors at this time in England - most were organists who taught the choir following whatever technique they themselves had been subjected to as former choristers. Mann was fortunate in this regard having been a chorister at Norwich Cathedral under the renowned Zechariah Buck. Mann was therefore an outstanding choir trainer himself and greatly improved the reputation of King's College Choir. He worked on improving the diction and timing of the choir to allow them to work with the acoustic of the chapel and its particularly lengthy reverb. He also opened up services to the public, where previously visitors needed written permission to attend.

Answer this question "who or what was Trinity"
output: 

input: In the months following the end of Late Show Letterman has been seen occasionally at sports events such as the Indianapolis 500, during which he submitted to an interview with a local publication. He made a surprise appearance on stage in San Antonio, Texas when he was invited up for an extended segment during Steve Martin and Martin Short's A Very Stupid Conversation show saying "I retired, and...I have no regrets," Letterman told the crowd after walking on stage. "I was happy. I'll make actual friends. I was complacent. I was satisfied. I was content, and then a couple of days ago Donald Trump said he was running for president. I have made the biggest mistake of my life, ladies and gentlemen" and then delivering a Top Ten List roasting Donald Trump's presidential campaign followed by an on-stage conversation with Martin and Short. Cell phone recordings of the appearance were posted on YouTube by audience members and were widely reported in the media.  In 2016, Letterman joined the climate change documentary show Years of Living Dangerously as one of the show's celebrity correspondents. In season two's premiere episode, Letterman traveled to India to investigate the country's efforts to expand its inadequate energy grid, power its booming economy and bring electricity for the first time to 300 million citizens. He also interviewed Indian Prime Minister Narendra Modi, and traveled to rural villages where power is a scarce luxury and explored the United States role in India's energy future.  In 2017, Letterman and Alec Baldwin co-hosted The Essentials on Turner Classic Movies. Letterman and Baldwin introduced seven films for the series.  Letterman has announced that in 2018 he will be hosting a six-episode series of hour-long programs on Netflix consisting of long-form interviews and field segments. The show will be entitled My Next Guest Needs No Introduction with David Letterman, with the first episode released on January 12, 2018, featuring Barack Obama.

Answer this question "What did he do after he left the late show ?"
output: following the end of Late Show Letterman has been seen occasionally at sports events such as the Indianapolis 500, during which he submitted to an interview with a local publication.

input: On 7 September 2005, while Chen was in Beijing to publicize his class action lawsuit against the Linyi city family planning staff, he was reportedly abducted by security agents from Linyi and held for 38 hours. Recounting the incident to foreign journalists, Chen said that authorities threatened to levy criminal charges against him for providing state secrets or intelligence to foreign organizations. After Chen refused negotiations with local officials to cease his activism, Linyi authorities placed him under effective house arrest beginning in September 2005. When he attempted to escape in October, he was beaten.  Xinhua, the news agency of the Chinese government, stated that on 5 February 2006, Chen instigated others "to damage and smash cars belonging to the Shuanghou Police Station and the town government" as well as attack local government officials. Time reported that witnesses to Chen's protest disputed the government's version of events, and his lawyers argued that it was unlikely he could have committed the crimes due to his constant surveillance by police. Chen was removed from his house in March 2006 and was formally detained in June 2006 by Yinan county officials. He was scheduled to stand trial on 17 July 2006 on charges of destruction of property and assembling a crowd to disrupt traffic, but this was delayed at the request of the prosecution. According to Radio Free Asia and Chinese Human Rights Defenders, the prosecution delayed the trial because a crowd of Chen supporters gathered outside the courthouse. With only a few days' notice, authorities rescheduled Chen's trial for 18 August 2006.  On the eve of his trial, all three of his lawyers, including Xu Zhiyong of the Yitong Law Firm, were detained by Yinan police; two were released after being questioned. Neither Chen's lawyers nor his wife were allowed in the courtroom for the trial. Authorities appointed their own public defender for Chen just before the trial began. The trial lasted only two hours. On 24 August 2006, Chen was sentenced to four years and three months for "damaging property and organizing a mob to disturb traffic".  As a result of Chen's trial, British Foreign Secretary Margaret Beckett selected his case for the cover of the British government's 2006 human rights report, stating concern over the handling of Chen's case and calling for the Chinese government "to prove its commitment to building rule of law." A Globe and Mail columnist also criticized the verdict, writing that "Even assuming [Chen] did damage 'doors and windows,' as well as cars, and interrupt traffic for three hours, it is difficult to argue a four-year prison sentence is somehow proportionate to the offence."  On 30 November 2006, Yinan County court upheld Chen's sentence, and on 12 January 2007, the Linyi Intermediate Court in Shandong Province rejected his final appeal. The same court had overturned his original conviction in December 2006, citing lack of evidence. However, Chen was convicted in a second trial on identical charges and given an identical sentence by the Yinan court. Following the trial, Amnesty International declared him to be a prisoner of conscience, "jailed solely for his peaceful activities in defence of human rights".

Answer this question "why was he detained"
output:
Chen said that authorities threatened to levy criminal charges against him for providing state secrets or intelligence to foreign organizations.