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.

[Q]: Passage: In 1933, a child orphaned during the Ukrainian Holodomor runs away from his orphanage and is taken in by a Red Army unit and adopted by its kindly commander, who gives him the name Leo Demidov. In 1945, now a sergeant with the unit, Leo becomes an icon across the Soviet Union when he is photographed planting the Soviet flag atop the Reichstag during the Battle of Berlin. He becomes a Hero of the Soviet Union.
In 1953, Leo, now married to Raisa and living in Moscow, is a captain in the Ministry of State Security, commanding a unit tasked with tracking down and arresting dissidents. They arrest a veterinarian, Anatoly Brodsky, and during the arrest, one of Leo's subordinates, the cowardly but ambitious Vasili Nikitin, shoots a farmer, Semyon Okun, and his wife in whose barn Brodsky has been hiding, orphaning their two young daughters. Angry, Leo strikes Vasili, who harbours growing resentment against Leo and the other officer in the unit, Alexei Andreyev; all three were in Berlin together in 1945. Vasili is in charge of Brodsky's interrogation and execution, and one of the names he gives to their superior, Major Kuzmin, is that of Raisa, a primary school teacher, several of whose colleagues have recently been arrested for dissident views. Kuzmin orders Leo to investigate his own wife.
Meanwhile, Alexei's young son, Jora, is found dead near a railway yard. Although the initial pathology report shows injuries consistent with torture, the surgically precise removal of organs, and drowning, the authorities declare that he was hit by a train, as Stalin has decreed that murder is a capitalist disease; there is no murder in a communist paradise. Alexei is forced to accept the official conclusions to save himself and the rest of his family.
Question: What is the profession of the man that the person in Leo's unit interrogates?
[A]: veterinarian.

[Q]: Passage: As far as we know, the earliest cantatas of Johann Sebastian Bach were performed in Muhlhausen from 1706 to 1708. He was employed as an organist there, but he occasionally composed cantatas, mostly for special occasions. The cantatas were based mainly on biblical texts and hymns, such as Aus der Tiefen rufe ich, Herr, zu dir, BWV 131 (a psalm setting), and the Easter chorale cantata Christ lag in Todes Banden, BWV 4.
Bach was next appointed organist and chamber musician in Weimar on 25 June 1708 at the court of the co-reigning dukes in Saxe-Weimar, Wilhelm Ernst and his nephew Ernst August. He initially concentrated on the organ, composing major works for the instrument, including the Orgelbuchlein, the Toccata and Fugue in D minor, BWV 565, and the Prelude and Fugue in E major, BWV 566. He was promoted to Konzertmeister on 2 March 1714, an honour that entailed performing a church cantata monthly in the Schlosskirche. The first cantatas he composed in the new position were Himmelskonig, sei willkommen, BWV 182, for Palm Sunday, Weinen, Klagen, Sorgen, Zagen, BWV 12 for Jubilate Sunday, and Erschallet, ihr Lieder, BWV 172, for Pentecost. Mostly inspired by texts by the court poet, Salomo Franck, they contain recitatives and arias. When Johann Samuel Drese, the Kapellmeister (director of music), died in 1716, Bach hoped in vain to become his successor. Bach looked for a better position and found it as Kapellmeister at the court of Leopold, Prince of Anhalt-Kothen. However, the duke in Weimar did not dismiss him and arrested him for disobedience. He was released on 2 December 1717.In Kothen, Bach found an employer who was an enthusiastic musician himself. The court was Calvinist, therefore Bach's work from this period was mostly secular, including the orchestral suites, the cello suites, the sonatas and partitas for solo violin, and the Brandenburg Concertos. He composed secular cantatas for the court for occasions such as New Year's Day and the prince's birthday, including Die Zeit, die Tag und Jahre macht, BWV 134a. He later parodied some of them as church cantatas without major changes, for example Ein Herz, das seinen Jesum lebend wei, BWV 134.
Question: What is the last name of the person who parodied some secular cantatas as church cantatas without major changes, for example Ein Herz, das seinen Jesum lebend wei, BWV 134?
[A]: Bach.

[Q]: Passage: Tragic Kingdom is the third studio album by American rock band No Doubt. It was released on October 10, 1995, by Trauma Records and Interscope Records. It was the final album to feature original keyboardist Eric Stefani, who left the band in 1994. The album was produced by Matthew Wilder and recorded in 11 studios in the Greater Los Angeles Area between March 1993 and October 1995. Between 1995 and 1998, seven singles were released from it, including "Just a Girl", which charted on the Billboard Hot 100 and the UK Singles Chart; and "Don't Speak", which topped the Billboard Hot 100 Airplay and reached the top five of many international charts.
The album received mostly positive reviews from music critics. At the 39th Annual Grammy Awards, No Doubt earned nominations for Best New Artist and Best Rock Album. It has sold over 16 million copies worldwide, and was certified diamond by the Recording Industry Association of America (RIAA) in the United States and Canada, platinum in the United Kingdom, and triple platinum in Australia. Tragic Kingdom helped to initiate the ska revival of the 1990s, persuading record labels to sign more ska bands and helping them to attract more mainstream attention. The album was ranked number 441 on Rolling Stone magazine's list of the 500 greatest albums of all time.
No Doubt embarked on a tour to promote the album. It was designed by Project X and lasted two and a half years. An early 1997 performance at the Arrowhead Pond of Anaheim was filmed and released as Live in the Tragic Kingdom on VHS and later DVD.
Question: What were the names of the two singles out of seven that were released that charted on the Billboard Hot 100?
[A]:
Just a Girl.