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.
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Question: Passage: Massenet was a prolific composer; he put this down to his way of working, rising early and composing from four o'clock in the morning until midday, a practice he maintained all his life. In general he worked fluently, seldom revising, although Le roi de Lahore, his nearest approach to a traditional grand opera, took him several years to complete to his own satisfaction. It was finished in 1877 and was one of the first new works to be staged at the Palais Garnier, opened two years previously. The opera, with a story taken from the Mahabharata, was an immense success and was quickly taken up by the opera houses of eight Italian cities. It was also performed at the Hungarian State Opera House, the Bavarian State Opera, the Semperoper, Dresden, the Teatro Real in Madrid, and the Royal Opera House, Covent Garden, in London. After the first Covent Garden performance, The Times summed the piece up in a way that was frequently to be applied to the composer's operas: "M. Massenet's opera, although not a work of genius proper, is one of more than common merit, and contains all the elements of at least temporary success."This period was an early high point in Massenet's career. He had been made a chevalier of the Legion of Honour in 1876, and in 1878 he was appointed professor of counterpoint, fugue and composition at the Conservatoire under Thomas, who was now the director. In the same year he was elected to the Institut de France, a prestigious honour, rare for a man in his thirties. Camille Saint-Saëns, whom Massenet beat in the election for the vacancy, was resentful at being passed over for a younger composer. When the result of the election was announced, Massenet sent Saint-Saëns a courteous telegram: "My dear colleague: the Institut has just committed a great injustice". Saint-Saëns cabled back, "I quite agree." He was elected three years later, but his relations with Massenet remained cool.Massenet was a popular and respected teacher at the Conservatoire. His pupils included Bruneau, Charpentier, Chausson, Hahn, Leroux, Pierné, Rabaud and Vidal. He was known for the care he took in drawing out his pupils' ideas, never trying to impose his own. One of his last students, Charles Koechlin, recalled Massenet as a voluble professor, dispensing "a teaching active, living, vibrant, and moreover comprehensive". According to some writers, Massenet's influence extended beyond his own students. In the view of the critic Rodney Milnes, "In word-setting alone, all French musicians profited from the freedom he won from earlier restrictions." Romain Rolland and Francis Poulenc have both considered Massenet an influence on Debussy's Pelléas et Mélisande; Debussy was a student at the Conservatoire during Massenet's professorship but did not study under him. 
Question: What is the name of the opera the Times calls "one of more than common merit"?

Answer: Le roi de Lahore.


Question: Passage: Paul Helfeld (also given as Hefeld), aged 21 in 1909, and Jacob Lepidus (also reported as Lapidus), who was 25 the same year, were Jewish-Latvian immigrants. They had been members of the Latvian Socialist Party and, although they had not held positions of responsibility, they had smuggled revolutionary literature into Russia for the party. The pair had been living in Paris in 1907, along with Lepidus's brother Paul, a revolutionary bomber who went under the nom de guerre "Strygia"; Jacob was described in The Times as a "member of a notorious Russian revolutionary family". On 1 May 1907 Paul Lepidus was killed when a bomb he was carrying to assassinate Armand Fallières, the President of France, exploded prematurely. Lepidus and Helfeld fled the country and lived in Scotland for a year, before moving to Tottenham.Both men joined a small group of Latvian agitators living in north London; according to other members of the group, the pair had criminal records and had joined as a cover for the robberies they carried out. Lepidus was employed, briefly, at a furniture factory, while Helfeld took a job at the Schnurmann rubber factory in Tottenham. Helfeld refused to give his name when he joined the company, so he was listed on the time sheets as "Elephant" in reference to his bulk. Situated on the corner of Tottenham High Road and Chesnut Road, the factory sat opposite Tottenham Police Station, which was under the control of the Metropolitan Police.Special Branch suspected another individual, the Russian revolutionary Christian Salnish, of having organised the robbery. Salnish, who often went under the name Jacob Fogel, had been an active revolutionary since the age of 13. He participated in the 1905 Russian Revolution and afterwards helped to build resistance groups in the Baltic states and Saint Petersburg, then the capital of Imperial Russia. Special Branch suspected a political element to the crime based on Salnish's involvement, but as both Helfeld and Lepidus died during the chase, the motivation for the crime was never established. 
Question: What is the first name of Paul's brother?

Answer: Jacob.


Question: Passage: As of 2013, Ratanakiri Province had a population of approximately 184,000. Its population nearly doubled between 1998 and 2013, largely due to internal migration. In 2013, Ratanakiri made up 1.3% of Cambodia's total population; its population density of 17.0 residents per square kilometer was just over one fifth the national average. About 70% of the province's population lives in the highlands; of the other 30%, approximately half live in more urbanized towns, and half live along rivers and in the lowlands, where they practice wetland rice cultivation and engage in market activities. Banlung, the provincial capital located in the central highlands, is by far the province's largest town, with a population of approximately 25,000. Other significant towns include Veun Sai in the north and Lomphat in the south, with populations of 2,000 and 3,000 respectively.In 2013, 37% of Ratanakiri residents were under age 15, 52% were age 15 to 49, 7% were age 50 to 64, and 3% were aged 65 or older; 49.7% of residents were male, and 50.3% were female. Each household had an average of 4.9 members, and most households (85.6%) were headed by men.While highland peoples have inhabited Ratanakiri for well over a millennium, lowland peoples have migrated to the province in the last 200 years. As of 2013, various highland groups collectively called Khmer Loeu made up approximately half of Ratanakiri's population, ethnic Khmers made up 36%, and ethnic Lao made up 10%. Within the Khmer Loeu population, 35% were Tampuan as of 1998, 24% were Jarai, 23% were Kreung, 11% were Brou, 3% were Kachok, and 3% were Kavet, with other groups making up the remaining one percent. There are also very small Vietnamese, Cham, and Chinese minorities.  Though the official language of Ratanakiri (like all of Cambodia) is Khmer, each indigenous group speaks its own language. Less than 10% of Ratanakiri's indigenous population can speak Khmer fluently. 
Question: What is the largest demographic bracket in Ratanakiri Province?

Answer:
15 to 49.