Question: "Littlest Things" is a song by an English singer who left school at what age?

Context paragraphs:
John Fowler (agricultural engineer): Fowler was born in Melksham, Wiltshire.  His father, John Fowler senior was a wealthy Quaker merchant, who had married Rebecca Hull, and together they had three daughters and five sons, of whom Fowler was the third son.  When he left school Fowler followed his father’s wishes and began working for a local corn merchant, but when he came of age in 1847 he turned his back on the corn business and joined the engineering firm of Gilkes Wilson and Company of Middlesbrough.  Amongst other things, the company was involved in building steam locomotives and colliery winding engines.  The company built a number of locomotives for the Stockton and Darlington Railway.

Joseph Merrick: Joseph Carey Merrick (5 August 1862 – 11 April 1890; often incorrectly called "John Merrick") was an English man with very severe deformities who was first exhibited at a freak show as the "Elephant Man", and then went to live at the London Hospital after he met Frederick Treves, so becoming well known in London society.  Merrick was born in Leicester, and began to develop abnormally during the first few years of his life: his skin appeared thick and lumpy, he developed enlarged lips, and a bony lump grew on his forehead, one of his arms and both of his feet became enlarged and at some point during his childhood he fell and damaged his hip, resulting in permanent lameness.  When he was 9, his mother died from bronchopneumonia, and his father soon remarried.  Merrick left school at the age of 13 and had difficulty finding employment.  Rejected by his father and stepmother, he left home.  In late 1879, Merrick, aged 17, entered the Leicester Union Workhouse.

Lily Allen: Lily Rose Beatrice Cooper (née Allen; born 2 May 1985), known professionally as Lily Allen, is an English singer, songwriter, actress, and television presenter.  She is the daughter of actor Keith Allen and film producer Alison Owen.  Allen left school when she was 15 and concentrated on improving her performing and compositional skills.  In 2005, she made some of her recordings public on Myspace and the publicity resulted in airplay on BBC Radio 1 and a contract with Regal Recordings.

Children of Immigrants Longitudinal Study: The Children of Immigrants Longitudinal Study (CILS) was designed to study the adaptation process of the immigrant second generation.  Immigrant second generation is defined broadly as United States-born children with at least one foreign-born parent, or children born abroad but brought at an early age to the United States.  The original survey was conducted with large samples of second-generation immigrant children attending the 8th and 9th grades in public and private schools in the metropolitan areas of Miami/Ft.  Lauderdale in Florida and San Diego, California.  Conducted in 1992, the first survey had the purpose of ascertaining baseline information on immigrant families, children's demographic characteristics, language use, self-identities, and academic attainment.  The total sample size was 5,262.  Respondents came from 77 different nationalities, although the sample reflects the most sizable immigrant nationalities in each area.  Three years later, corresponding to the time in which respondents were about to graduate from high school, the first follow-up survey was conducted.  Its purpose was to examine the evolution of key adaptation outcomes including language knowledge and preference, ethnic identity, self-esteem, and academic attainment over the adolescent years.  The survey also sought to establish the proportion of second-generation youths who dropped out of school before graduation.  This follow-up survey retrieved 4,288 respondents or 81.5 percent of the original sample.  Together with this follow-up survey, a parental survey was conducted.  The purpose of this interview was to establish directly characteristics of immigrant parents and families and their outlooks for the future including aspirations and plans for the children.  In total, 2,442 parents or 46 percent of the original student sample were interviewed.  During 2001-2003, or a decade after the original survey, a final follow-up was conducted.  The sample now averaged 24 years of age and, hence, patterns of adaptation in early adulthood could be readily assessed.  The original and follow-up surveys were conducted mostly in schools attended by respondents, greatly facilitating access to them.  Most respondents had already left school by the time of the second follow-up so they had to be contacted individually in their place of work or residence.  Respondents were located not only in the San Diego and Miami areas, but also in more than 30 different states, with some surveys returned from military bases overseas.  Mailed questionnaires were the principal source of completed data in this third survey.  In total, CILS-III retrieved complete or partial information on 3,613 respondents representing 68.9 percent of the original sample and 84.3 percent of the first follow-up.  Relevant adaptation outcomes measured in this survey include educational attainment, employment and occupational status, income, civil status and ethnicity of spouses/partners, political attitudes and participation, ethnic and racial identities, delinquency and incarceration, attitudes and levels of identification with American society, and plans for the future.

Littlest Things: "Littlest Things" is a song by British recording artist Lily Allen from her debut studio album, "Alright, Still".  Written by Allen, Mark Ronson and Santi White, the song was released as the third single of the album on 11 December 2006 by Regal Recordings.  It incorporates a piano sample from Pierre Bachelet and Herve Roy's music from "Emmanuelle", for which they were credited as co-writers, as the lyrics tackle the singer dealing with the departure of her boyfriend, while reminiscing about their time together.  The song was created in a New York studio, after Allen had met Ronson, who was impressed by her previous work and offered her different samples.

Literacy in Romania: Before World War II, the literacy rate in Romania ranked among the lowest in Europe.  In 1930, at the time of the first official census, more than 38 percent of the population over seven years of age were considered illiterate: 50 percent of the women and over 25 percent of the men in the entire population of about 18 million were unable to read or write.  In rural areas, where most of the population lived, illiteracy rate was considered even higher.  Prominent reasons for the lack of literacy were that children of school age either were not enrolled in school or, if they were, did not attend classes regularly.  There was also a fairly large percentage of children who left school without completing their studies or, having completed only the compulsory first four grades, relapsed into illiteracy in adult life.

Carl Gordon (journalist): Carl Gordon was a Scottish journalist.  He was born in Greenock on 13 March 1931, and attended Mearns Street School and Greenock High School.  His maternal grandfather was from Copenhagen, and when he left school at the age of 14 he had already started to teach himself Danish.  His first job was as a railway clerk and he worked at various stations in the Greenock area before being called up for National Service in 1949.  After training in the Royal Army Service Corps (now the Royal Logistics Corps) he was posted to the War Office (now the Ministry of Defence) and left with the rank of sergeant in 1951.

Lily Allen discography: English singer and songwriter Lily Allen has released three studio albums, two extended plays, 20 singles (including six as a featured artist), two promotional singles and 21 music videos. Allen's range of musical genres incorporates styles such as pop, ska, electropop and reggae fusion.  She became well-known through her Myspace account, on which she started posting demo songs in 2005.  The increase of popularity led to a contract with Regal Recordings.  Her debut single, "Smile", was released in 2006 and topped the UK Singles Chart for two weeks.  Allen's first studio album, "Alright, Still" (2006), was released shortly after.  The album was commercially successful, earning a three times platinum certification in the United Kingdom, and gold in the United States.  The album was nominated for Best Alternative Music Album at the 50th Grammy Awards.  Follow-up singles "LDN", "Littlest Things" and "Alfie" did not repeat her early success, although they still sold well; "LDN" peaked at number six on the UK Singles Chart.

Left School: The Left School (Russian: Левая школа) – a clandestine radical left organization, founded in Moscow in December 1972 - January 1973.  Left School is seen by modern researchers as one of the first organizations of the New Left in the Soviet Union.

Phyllis Turner: Phyllis Mary Turner (c. 1913 – 24 June 2009) was an Australian women who is the second oldest person to have received a master's degree.  Having left school at age 12, Turner returned to study at the age of 70, to study Anthropology.  Turner was awarded her Medical Science master's degree, at the age of 94, from Adelaide University in August, 2007.

Supporting paragraphs: Littlest Things Lily Allen
Answer: 15