In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Q: Passage: Dr. Watson is serving as resident doctor at Musgrave Manor in Northumberland, a stately home which is also used as a hospital for a number of servicemen suffering from shell shock.When Sally Musgrave displays her feelings for one of the wounded American fighter pilots, Captain Pat Vickery, who is currently recovering at the family estate, her brothers Geoffrey and Phillip are quick to show their dismay.
Then one of the physicians working at the estate, Dr. Sexton, is assaulted by an unknown assailant when out on a walk. Dr. John Watson, who is in charge of the medical facility, goes to fetch his dear friend Sherlock Holmes to bring some clarity to the case of the attack.
Upon his arrival to the estate, Sherlock Holmes discovers the dead body of one of the brothers, Geoffrey. Inspector Lestrade of the Scotland Yard is put on the case to solve the murder, and immediately arrests the captain as a suspect.
Holmes is of another opinion about the flyer's guilt and continues to investigate on his own. Phillip is formally made the new head of the estate the next day with the aid of his sister. But after only one day of ruling the estate, Phillip too is found murdered, lying in the trunk of the car.
Lestrade suspects the family butler, Alfred Brunton, to be the murderer because Phillip had just fired the butler. Trying to arrest the butler, Lestrade gets lost in the manor's secret passageways. Meanwhile Holmes and Watson look into the special "Musgrave Ritual" that the family uses to appoint the new head of the family. They find the words used in the ritual hidden in Sally's room and try to copy the ritual, which involves replaying a giant chess game on the checkered floor of the house main hall. As pieces in the game they use the household staff.

A: Who fired the butler before the crimes were committed?
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Q: Passage: Santa Anna had successfully escaped towards Vince's Bridge. Finding the bridge destroyed, he hid in the marsh and was captured the following day. He was brought before Houston, who had been shot in the ankle and badly wounded. Texian soldiers gathered around, calling for the Mexican general's immediate execution. Bargaining for his life, Santa Anna suggested that he order the remaining Mexican troops to stay away. In a letter to Filisola, who was now the senior Mexican official in Texas, Santa Anna wrote that "yesterday evening [we] had an unfortunate encounter" and ordered his troops to retreat to Bexar and await further instructions.Urrea urged Filisola to continue the campaign. He was confident that he could successfully challenge the Texian troops. According to Hardin, "Santa Anna had presented Mexico with one military disaster; Filisola did not wish to risk another." Spring rains ruined the ammunition and rendered the roads almost impassable, with troops sinking to their knees in mud. Mexican troops were soon out of food, and began to fall ill from dysentery and other diseases. Their supply lines had completely broken down, leaving no hope of further reinforcements. Filisola later wrote that "Had the enemy met us under these cruel circumstances, on the only road that was left, no alternative remained but to die or surrender at discretion".For several weeks after San Jacinto, Santa Anna continued to negotiate with Houston, Rusk, and then Burnet. Santa Anna suggested two treaties, a public version of promises made between the two countries, and a private version that included Santa Anna's personal agreements. The Treaties of Velasco required that all Mexican troops retreat south of the Rio Grande and that all private propertycode for slavesbe respected and restored. Prisoners-of-war would be released unharmed, and Santa Anna would be given passage to Veracruz immediately. He secretly promised to persuade the Mexican Congress to acknowledge the Republic of Texas and to recognize the Rio Grande as the border between the two countries.When Urrea began marching south in mid-May, many families from San Patricio who had supported the Mexican army went with him. When Texian troops arrived in early June, they found only 20 families remaining. The area around San Patricio and Refugio suffered a "noticeable depopulation" in the Republic of Texas years. Although the treaty had specified that Urrea and Filisola would return any slaves their armies had sheltered, Urrea refused to comply. Many former slaves followed the army to Mexico, where they could be free. By late May the Mexican troops had crossed the Nueces. Filisola fully expected that the defeat was temporary and that a second campaign would be launched to retake Texas.

A: What is the name of the person who secretly promised to persuade the Mexican Congress to acknowledge the Republic of Texas and to recognize the Rio Grande as the border between the two countries?
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Q: 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-Saens, 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-Saens a courteous telegram: "My dear colleague: the Institut has just committed a great injustice". Saint-Saens 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, Pierne, 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 Pelleas et Melisande; Debussy was a student at the Conservatoire during Massenet's professorship but did not study under him.

A:
What is the name of the opera that was an immense success and was quickly taken up by the opera houses of eight Italian cities?
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