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: Recording sessions for The Joshua Tree began in January 1986 in Danesmoate House in Dublin and continued throughout the year. U2 briefly interrupted these sessions in June to join Amnesty International's A Conspiracy of Hope tour of benefit concerts. Following the first concert in San Francisco, lead singer Bono met René Castro, a Chilean mural artist. Castro had been tortured and held in a concentration camp for two years by the dictatorial Chilean government because his artwork criticised the Pinochet-led regime that seized power in 1973 during a coup d'état. Castro showed Bono a wall painting in the Mission District that depicted the ongoing plight in Chile and Argentina. He also learned of the Madres de Plaza de Mayo, a group of women whose children were forcibly disappeared by the Argentine government. The Madres' children were students who had opposed the government during the Dirty War, and the coup d'état that brought Jorge Rafael Videla to power. The Madres joined together to campaign for information regarding the locations of their children's bodies and the circumstances of their deaths, believing them to have been kidnapped, tortured, and murdered.Inspired by the mural, Bono took an extended break from recording into July, traveling to Nicaragua and El Salvador with his wife, Alison Hewson, to see first-hand the distress of peasants bullied by political conflicts and US military intervention. While there, they worked with the Central American Mission Partners (CAMP), a human rights and economic development organization. In El Salvador they met members of the Comité de Madres Monsignor Romero (COMADRES: Committee of the Mothers Monsignor Romero), an organization of women whose children were forcibly disappeared by the Salvadoran government during the Civil War because they opposed the military regime that was in power. At one point during the trip, Bono, Alison, and a member of CAMP were shot at by government troops while on their way to deliver aid to a group of farmers. The shots were a warning and, according to author John Luerssen, the incident made Bono realize that "they didn't care for their intrusion and they could kill them if they felt compelled."In 2006, Bono recounted another experience he had in El Salvador, where he had seen a body thrown from a van into the road. He remarked, "People would just disappear. If you were part of the opposition, you might find an SUV with the windows blacked out parked outside your house.... If that didn't stop you, occasionally they would come in and take you and murder you; there would be no trial." Bono understood the cause of the Madres and COMADRES and wanted to pay tribute to it. His experiences in Central America inspired the lyrics of "Mothers of the Disappeared" and another track from The Joshua Tree, "Bullet the Blue Sky". 
Question: What is the first name of the person who was held in a concentration camp for two years by the dictatorial Chilean government?

Answer: René.


Question: Passage: It is not clear why, in 1873, Alkan decided to emerge from his self-imposed obscurity to give a series of six Petits Concerts at the Érard piano showrooms. It may have been associated with the developing career of Delaborde, who, returning to Paris in 1867, soon became a concert fixture, including in his recitals many works by his father, and who was at the end of 1872 given the appointment that had escaped Alkan himself, Professor at the Conservatoire. The success of the Petits Concerts led to them becoming an annual event (with occasional interruptions caused by Alkan's health) until 1880 or possibly beyond. The Petits Concerts featured music not only by Alkan but of his favourite composers from Bach onwards, played on both the piano and the pédalier, and occasionally with the participation of another instrumentalist or singer. He was assisted in these concerts by his siblings, and by other musicians including Delaborde, Camille Saint-Saëns, and Auguste Franchomme.Those encountering Alkan at this phase included the young Vincent d'Indy, who recalled Alkan's "skinny, hooked fingers" playing Bach on an Érard pedal piano: "I listened, riveted to the spot by the expressive, crystal-clear playing." Alkan later played Beethoven's Op. 110 sonata, of which d'Indy said: "What happened to the great Beethovenian poem ... I couldn't begin to describe – above all in the Arioso and the Fugue, where the melody, penetrating the mystery of Death itself, climbs up to a blaze of light, affected me with an excess of enthusiasm such as I have never experienced since. This was not Liszt—perhaps less perfect, technically—but it had greater intimacy and was more humanly moving ..."The biographer of Chopin, Frederick Niecks, sought Alkan for his recollections in 1880 but was sternly denied access by Alkan's concierge – "To my ... enquiry when he could be found at home, the reply was a ... decisive 'Never'." However, a few days later he found Alkan at Érard's, and Niecks writes of their meeting that "his reception of me was not merely polite but most friendly.". 
Question: Whose reception of Niecks was reportedly not merely polite but most friendly?

Answer: Alkan.


Question: Passage: The central square in Covent Garden is simply called "Covent Garden", often marketed as "Covent Garden Piazza" to distinguish it from the eponymous surrounding area. Designed and laid out in 1630, it was the first modern square in London—originally a flat, open space or piazza with low railings. From about 1635 onwards there were many private residents of note, including the nobility, living in the Great Piazza. A casual market started on the south side, and by 1830 the present market hall had been built. The space is popular with street performers, who audition with the site's owners for an allocated slot. The square was originally laid out when the 4th Earl of Bedford, Francis Russell, commissioned Inigo Jones to design and build a church and three terraces of fine houses around the site of a former walled garden belonging to Westminster Abbey. Jones's design was informed by his knowledge of modern town planning in Europe, particularly Piazza d'Arme, in Leghorn, Tuscany, Piazza San Marco in Venice, Piazza Santissima Annunziata in Florence, and the Place des Vosges in Paris. The centrepiece of the project was the large square, the concept of which was new to London, and this had a significant influence on modern town planning as the metropolis grew, acting as the prototype for the design of new estates, such as the Ladbroke Estate and the Grosvenor Estate. Isaac de Caus, the French Huguenot architect, designed the individual houses under Jones's overall design.The church of St Paul's was the first building, and was begun in July 1631 on the western side of the square. The last house was completed in 1637. Seventeen of the houses had arcaded portico walks organised in groups of four and six either side of James Street on the north side, and three and four either side of Russell Street. These arcades, rather than the square itself, took the name Piazza; the group from James Street to Russell Street became known as the "Great Piazza" and that to the south of Russell Street as the "Little Piazza". None of Inigo Jones's houses remain, though part of the north group was reconstructed in 1877–79 as Bedford Chambers by William Cubitt to a design by Henry Clutton. 
Question: In what year was the last house completed during the orginal building of Covent Garden?

Answer:
1637.