instruction:
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.
question:
Passage: In the 2040s, a Martian research base, Tantalus Base outpost, is created. The eight person crew, who have been stationed there for six months, are only nineteen hours from the completion of their research mission. The spacecraft Aurora is inbound from Earth and will collect the team by lander. Mars scientist Marko Petrović has found samples that may point to life on the planet. Without revealing his discovery, he devises a ruse for a last sojourn on the surface. Crewmate Richard Harrington drives Petrović in a solar powered rover to the spot where he had found the sample. After he obtains soil with the biological agent present, a fissure swallows Petrović.
Captain Charles Brunel and crewmate Lauren Dalby plan to explore the pit to retrieve Petrović's body. Dalby remains at the pit but disappears before the team can return with equipment. Brunel authorizes Vincent Campbell to explore the pit and he finds a fungus-like life that grows in the fissure. Dalby and Petrović reappear at the main outpost, but the Martian bacteria has mutated them into fast, aggressive, zombie-like creatures with blackened skin and no trace of their original personalities. Harrington dies from a power drill attack by one of the zombies and later revives as one himself. The remaining crew hold off the zombies while Brunel and Campbell return. Brunel is also fatally injured and reanimates, which provides the crew with new insight into the symptoms: thirst, memory loss and aggression.
answer:
What is the full name of the person who obtained the soil with the biological agent?


question:
Passage: In 1990, Zappa was diagnosed with terminal prostate cancer. The disease had been developing unnoticed for ten years and was considered inoperable. After the diagnosis, Zappa devoted most of his energy to modern orchestral and Synclavier works. Shortly before his death in 1993 he completed Civilization Phaze III, a major Synclavier work which he had begun in the 1980s.In 1991, Zappa was chosen to be one of four featured composers at the Frankfurt Festival in 1992 (the others were John Cage, Karlheinz Stockhausen, and Alexander Knaifel). Zappa was approached by the German chamber ensemble Ensemble Modern which was interested in playing his music for the event. Although ill, he invited them to Los Angeles for rehearsals of new compositions and new arrangements of older material. Zappa also got along with the musicians, and the concerts in Germany and Austria were set up for later in the year. Zappa also performed in 1991 in Prague, claiming that "was the first time that he had a reason to play his guitar in 3 years", and that that moment was just "the beginning of a new country", and asked the public to "try to keep your country unique, do not change it into something else".In September 1992, the concerts went ahead as scheduled but Zappa could only appear at two in Frankfurt due to illness. At the first concert, he conducted the opening "Overture", and the final "G-Spot Tornado" as well as the theatrical "Food Gathering in Post-Industrial America, 1992" and "Welcome to the United States" (the remainder of the program was conducted by the ensemble's regular conductor Peter Rundel). Zappa received a 20-minute ovation. G-Spot Tornado was performed with Canadian dancer Louise Lecavalier. It was his last professional public appearance as the cancer was spreading to such an extent that he was in too much pain to enjoy an event that he otherwise found "exhilarating". Recordings from the concerts appeared on The Yellow Shark (1993), Zappa's last release during his lifetime, and some material from studio rehearsals appeared on the posthumous Everything Is Healing Nicely (1999).
answer:
In what city was Zappa's last professional public appearance?


question:
Passage: Giovanni Battista Barbirolli was born in Southampton Row, Holborn, London, the second child and eldest son of an Italian father and a French mother. He was a British national from birth, and as Southampton Row is within the sound of Bow Bells, Barbirolli always regarded himself as a Cockney. His father, Lorenzo Barbirolli (1864–1929), was a Venetian violinist who had settled in London with his wife, Louise Marie, née Ribeyrol (1870–1962). Lorenzo and his father had played in the orchestra at La Scala, Milan, where they had taken part in the première of Otello in 1887. In London they played in West End theatre orchestras, principally that of the Empire, Leicester Square.
The young Barbirolli began to play the violin when he was four, but soon changed to the cello. He later said that this was at the instigation of his grandfather who, exasperated at the child's habit of wandering around while practising the violin, bought him a small cello to stop him from "getting in everybody's way". His education at St. Clement Danes Grammar School overlapped, from 1910, with a scholarship at Trinity College of Music. As a Trinity student, he made his concert debut in a cello concerto in the Queen's Hall in 1911. The following year he won a scholarship to the Royal Academy of Music, which he attended from 1912 to 1916, studying harmony, counterpoint and theory under Dr. J. B. McEwen and the cello with Herbert Walenn. In 1914 he was joint winner of the academy's Charles Rube Prize for ensemble playing, and in 1916 The Musical Times singled him out as "that excellent young 'cello player, Mr Giovanni Barbirolli." The principal of the Academy, Sir Alexander Mackenzie, had forbidden students to play the chamber music of Ravel, which he regarded as "a pernicious influence". Barbirolli was keenly interested in modern music, and he and three colleagues secretly rehearsed Ravel's String Quartet in the privacy of a men's lavatory in the Academy.From 1916 to 1918 Barbirolli was a freelance cellist in London. He recalled, "My first orchestral engagement was with the Queen's Hall Orchestra – I was probably the youngest orchestral musician ever, joining them in 1916. We had an enormous repertory – six concerts a week, three hours or more rehearsal a day. In those days we were happy if we began and finished together". While playing in the Queen's Hall Orchestra, Barbirolli also played in the opera pit for the Beecham and Carl Rosa opera companies, in recitals with the pianist Ethel Bartlett, with orchestras in theatres, cinemas, hotels and dance-halls, and, as he said, "everywhere except the street". During the last year of the First World War, Barbirolli enlisted in the army and became a lance-corporal in the Suffolk Regiment. Here he had his first opportunity to conduct, when an orchestra of volunteers was formed. He later described the experience:.
answer:

What is the full name of the person that started to play the violin at age four?