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: The blacksmith and swordsmith John is tutored at the court of King Arthur, but as a commoner he can't hope to win the hand of Lady Linet, daughter of the Earl of Yeonil. The Earl's castle is attacked by Saracens and Cornishmen disguised as Vikings and his wife is killed, making him lose his memory. The attack was part of a plot by the Saracen Sir Palamides and the pagan Cornish King Mark to overthrow Arthur and Christianity and take over the country, whilst pretending to be Arthur's friends and allies - Palamides is a knight of the round table and Mark has faked his own baptism.John accuses Palamides' servant Bernard of murder before Arthur, who grants him three months' grace to prove the accusation or face execution himself. Another knight, Sir Ontzlake, takes pity on John and trains him in swordplay so that he can take on an alternative secret identity as the wandering Black Knight. The "Vikings" raid a newly founded monastery and take Lady Linet and its monks to Stonehenge for a pagan sacrifice, but the Black Knight arrives and saves her, closely followed by Arthur and his knights, who defeat the pagans and destroy Stonehenge.
Sir Palamides tricks the Lady Linet into his castle to try to get her to reveal the Black Knight's identity, but John is informed of this and saves her, still in disguise. Sir Ontzlake then sends him to King Mark's castle, where a pro-Arthur woodcarver shows him a secret tunnel into the royal chambers. John arrives in time to overhear Mark and Palamides finalising their plot but Palamides beats him back to Camelot, tricking Arthur into thinking that the Black Knight is leading the Viking raids. John arrives dressed as the Black Knight and despite revealing his identity is briefly imprisoned until Lady Linet and Sir Ontzlake free him, with the latter standing bail for John to Arthur.
answer:
Who loses his memory after his wife is killed?

question:
Passage: Opeth was formed as a death metal band in 1989 in Stockholm, Sweden, by lead vocalist David Isberg. Isberg asked former Eruption band member Mikael Akerfeldt, who was just 16 years old at the time, to join Opeth as a bassist. When Akerfeldt showed up to practice on the day after Isberg invited him, it became clear that Isberg had not told the band members, including the band's current bassist, that Akerfeldt would be joining the band. An ensuing argument led to all members but Isberg and Akerfeldt leaving to form a new project. The band name was derived from the word "Opet", taken from the Wilbur Smith novel The Sunbird. In this novel, Opet is the name of a fictional Phoenician city in South Africa translated as "City of the Moon".
Isberg and Akerfeldt recruited drummer Anders Nordin, bassist Nick Doring, and guitarist Andreas Dimeo. Unsatisfied with Opeth's slow progress, Doring and Dimeo left the band after their first performance, and were replaced by guitarist Kim Pettersson and bassist Johan De Farfalla. After the next show, De Farfalla left Opeth to spend time with his girlfriend in Germany, and was initially replaced by Mattias Ander, before Akerfeldt's friend Peter Lindgren took on the role of bassist. Rhythm guitarist Kim Pettersson left following the band's next performance, and Lindgren switched to guitar, with the role of bassist falling to Stefan Guteklint. The following year, David Isberg left the band citing "creative differences".Following Isberg's departure, Akerfeldt took over vocal duties and he, Lindgren, and Nordin spent the next year writing and rehearsing new material. The group began to rely less on the blast beats and aggression typical of death metal, and incorporated acoustic guitars and guitar harmonies into their music; developing the core sound of Opeth. Bassist Guteklint was dismissed by the band after they signed their first record deal with Candlelight Records in 1994. Opeth initially employed former member De Farfalla as a session bassist for their demo recordings, and he went on to join on a full-time basis following the release of Opeth's debut album, "Orchid", in 1995.
answer:
What is the last name of the bassist who replaced the band member that was dismissed in 1994?

question:
Passage: From 1722 to 1724, brief armed conflicts between the Natchez and French were settled through negotiations between Louisiana governor Bienville and Natchez war chief Tattooed Serpent. In 1723, Bienville had been informed that some Natchez had harassed villagers, and he razed the Natchez village of White Apple and enslaved several villagers, only to discover that the alleged harassment had been faked by the colonists to frame the Natchez. One of the later skirmishes in 1724 consisted of the murder of a Natchez chief's son by a colonist, to which the Natchez responded by killing another Frenchman named Guenot. Bienville then sent French soldiers from New Orleans to attack the Natchez at their fields and settlements, and the Natchez surrendered. Their plea for peace was met following the execution of one of their chiefs by the French.Chronicler Le Page du Pratz, who lived among the Natchez and was a close friend of Tattooed Serpent, records that he once asked his friend why the Natchez were resentful towards the French. Tattooed Serpent answered that the French seemed to have "two hearts, a good one today, and tomorrow a bad one", and proceeded to tell how Natchez life had been better before the French arrived. He finished by saying, "Before the arrival of the French we lived like men who can be satisfied with what they have, whereas today we live like slaves, who are not suffered to do as they please." The most faithful ally of the French, Tattooed Serpent died in 1725, another blow to the relations between the Natchez and the colonists.According to archaeologist Karl Lorenz, who excavated several Natchez settlements, another factor that complicated relations between the Natchez and the colonists was the fact that the French did not well understand the Natchez political structure. The French assumed that the Great Sun, the chief of the Grand Village, also held sway over all the other Natchez villages. In truth, each village was semi-autonomous, and the Great Sun's power only extended to the villages of Flour and Tioux (with which the Grand Village was allied) and not to the three pro-British villages of White Apple, Jenzenaque and Grigra. When the Great Sun died in 1728 and was succeeded by his inexperienced nephew, the pro-British villages became more powerful than the pro-French villages centered at Natchez.
answer:
What was the name of the person that enslvaed several villagers?