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.

Passage: During the late 12th century, about 100 years after the Norman conquest (1066), the Normans have removed the native ruling class, replacing it with a new monarchy, aristocracy and clerical hierarchy.
Thomas Becket is a Saxon protege and facilitator to the carousing King Henry II, who transforms into a man who continually invokes the "honour of God". Henry appoints Becket Lord Chancellor to have a close confidant in this position whom he can completely control. Instead, Becket becomes a major thorn in his side in a jurisdictional dispute. Henry finds his duties as king and his stale arranged marriage to be oppressive, and is described as the "perennial adolescent" by the Bishop of London. Henry is more interested in escaping his duties through drunken forays onto the hunting grounds and local brothels. He is increasingly dependent on Becket, a Saxon commoner, who arranges these debaucheries when he is not busy running Henry's court. This foments great resentment on the part of Henry's Norman noblemen, who distrust and envy this Saxon upstart, as well as the queen and Henry's mother, who see Becket as an unnatural and unseemly influence upon the royal personage.
Henry finds himself in continuous conflict with the elderly Archbishop of Canterbury, who opposes the taxation of Church property to support Henry's military campaigns in France ("Bishop, I must hire the Swiss Guards to fight for me and no one has ever paid them off with principles!"). During one of his campaigns in coastal France, he receives word that the old archbishop has "gone to God's bosom". In a burst of inspiration, Henry exercises his prerogative to pick the next Archbishop and informs an astonished Becket that he is the royal choice.
Question: What is the full name of the person who Thomas is a thorn in the side of?
King Henry II.

Passage: Nannerl herself was an apt pupil, no less quick to learn than her brother, and was playing the keyboard with striking virtuosity by the time she was eleven. In that year, 1762, Leopold brought the children to Munich to play before Maximilian III Joseph, Elector of Bavaria. Leopold then took the entire family to Vienna, on a trip that lasted for three months. He had secured invitations from several noble patrons, and within three days of arriving the children were playing at the palace of Count Collalto. Among those present was the Viennese Treasury councillor and future prime minister Karl von Zinzendorf, who noted in his diary that "a little boy, said to be only five-and-a-half years old [Wolfgang was actually nearly seven], played the harpsichord". After an appearance before the Imperial Vice-Chancellor, the Mozarts were invited to the royal court, where the Empress Maria Theresa tested Wolfgang's abilities by requiring him to play with the keyboard covered. During this court visit Wolfgang met the Archduchess Maria Antonia, the future Queen Marie Antoinette of France, who was two months his senior. Mozart's biographer Eric Blom recounts an anecdote of how the Archduchess helped Wolfgang when he slipped on the polished floor; she is supposed to have received a proposal of marriage in return.As the Mozarts began to be noticed by the Viennese aristocracy, they were often required to give several performances during a single day. They were well rewarded for this activityat the end of their first hectic week in Vienna, Leopold was able to send home the equivalent of more than two years' salary. Their schedule was interrupted when Wolfgang fell ill with scarlet fever, and their former momentum was not regained. Nevertheless, the visit left Leopold eager to pursue further opportunities for social and financial success. On their return to Salzburg, Wolfgang played the harpsichord and violin at a birthday concert for the archbishop, to the evident astonishment of those present.
Question: Who played the keyboard with striking virtuosity?
Wolfgang.

Passage: English-Tamil musician M.I.A. (Mathangi "Maya" Arulpragasam) released her second album Kala in 2007, which achieved widespread critical acclaim, and was certified gold in the United States and silver in the United Kingdom. Six months after giving birth to her son Ikyhd in February 2009, she began composing and recording her third studio album in a home studio section of the Los Angeles house she had bought with her partner Ben Bronfman. She used instruments such as the portable dynamic-phrase synthesizer Korg Kaossilator to compose. She took the beat machine and began recording atop Mayan pyramids in Mexico. Much of the work on the album was undertaken at her house in Los Angeles, in what she called a "commune environment", before it was completed in a rented studio in Hawaii. She collaborated with writer-producer Blaqstarr because, in her opinion, "he simply makes good music". M.I.A.'s collaboration with Derek E. Miller of Sleigh Bells on the track "Meds and Feds" prompted her subsequent signing of the band to her label N.E.E.T., and according to Miller, this experience gave him the confidence to record the band's debut album Treats.Her creative partnership with the comparatively unknown Rusko grew from a sense of frustration at what she saw as her now more mainstream associates suggesting sub-standard tracks due to their busy schedules. Diplo worked on the track "Tell Me Why", but at a studio in Santa Monica rather than at the house. He claimed in an interview that, following the break-up of his personal relationship with M.I.A. some years earlier, he was not allowed to visit the house because "her boyfriend really hates me".Tracks for the album were whittled down from recording sessions lasting up to 30 hours. Producer Rusko, who played guitar and piano on the album, described the pair getting "carried away" in the studio, appreciating the "mad distorted and hectic" sound they were able to create. Rusko said "She's got a kid, a little one year old baby, and we recorded his heart beat. We'd just think of crazy ideas". Rusko has described M.I.A. as the best artist he has ever worked with, saying that she had "been the most creative and I really had a good time making music with her".
Question: What is the full name of the person that played piano of the Kala album?
Producer Rusko.