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.

Input: Consider Input: Passage: As a result of the Berlin Conference of 1884-1885, the Congo Basin is claimed by King Leopold II of the Belgians, who rules the Congo Free State in personal union with the Kingdom of Belgium. The country is on the verge of bankruptcy, Leopold having borrowed huge sums of money to finance the construction of railways and other infrastructure projects. He sends his envoy Léon Rom to secure the fabled diamonds of Opar. Rom's expedition is ambushed and massacred. A tribal leader, Chief Mbonga, offers Rom the diamonds in exchange for an old enemy: Tarzan.
The man once called "Tarzan", John Clayton III, has left Africa behind and settled down in London with his American-born wife, Jane Porter. He took up his birth name and ancestral family residence as Lord Greystoke. In the eight years since returning from Africa, John's story as Tarzan has become legendary among the Victorian public, although John wants to leave that past behind. Through the British Prime Minister, John is invited by King Leopold to visit Boma and report on the development of the Congo by Belgium; he declines to participate in the perceived publicity stunt.

Output: What is the first name of the person who sends his envoy to secure diamonds?


Input: Consider Input: Passage: A woman's dead body is shown in a cluster of lantana bushes. 
Leon, a police officer, and Jane, have sex in a motel room. They part ways, and Leon and his wife, Sonja, attend Latin dance classes that the recently separated Jane is also taking.
Leon does not enjoy the classes. He is seen savagely beating a drug dealer during a bust. He has emotional issues but refuses to confront or admit to them. Sonja sees a therapist, Valerie, who has just published a book on her own daughter's murder 18 months ago. She and her husband, John, are barely on speaking terms; he later refers to their marriage as held together by their grief. She feels threatened by another patient, Patrick Phelan, who is having an affair with a married man, which forces Valerie to confront her own issues in her marriage to John.
Hoping to see Leon again, Jane purposely bumps into him outside the police station, and they have sex again despite Leon's reservations. Nik is upset that she is seeing someone because he is friends with her estranged husband, Pete, who wants to return home. Jane pairs up with Sonja in the next salsa class, which angers Leon, who ends their arrangement, which upsets Jane. She invites Nik over for coffee at the behest of Paula, with whom she is friendly and offers him money as they are struggling. Paula now starts to dislike Jane.
Valerie is coming home late one night and drives off the road. She is stranded and makes several calls to John, who does not answer. Finally, she is seen approaching a car coming along the road but never makes it home. Leon is the investigating detective on the case and looks into her office and notes.  Surprised at seeing his wife's name and file, he takes an audio recording of their sessions.

Output: Whose disappearance is Leon investigating when he finds tapes of his wife's therapy sessions?


Input: Consider Input: Passage: The vocals were taped in Britannia Row and Protocol studios between May and June 1991, the first time vocalist Bilinda Butcher was involved in the recording. Shields and Butcher hung curtains on the window between the studio control room and the vocal booth, and only communicated with the engineers when they would acknowledge a good take by opening the curtain and waving. According to engineer Guy Fixsen, "We weren't allowed to listen while either of them were doing a vocal. You'd have to watch the meters on the tape machine to see if anyone was singing. If it stopped, you knew you had to stop the tape and take it back to the top." On most days, the couple arrived without having written the lyrics for the song they were to record. Dutt recalled: "Kevin would sing a track, and then Bilinda would get the tape and write down words she thought he might have sung".In July 1991, Creation agreed to relocate the production to Eastcote studio, following unexplained complaints from Shields. However, the cash-poor Creation Records was unable to pay the bill for their time at Britannia Row, and the studio refused to return the band's equipment. Dutt recalled, "I don't know what excuse Kevin gave them for leaving. He had to raise the money himself to get the gear out." Shields' unpredictable behaviour, the constant delays, and studio changes were having a material effect on Creation's finances and the health of their staff. Dutt later said he had been desperate to leave the project, while Creation's second-in-command Dick Green had a nervous breakdown. Green recalled, "It was two years into the album, and I phoned Shields up in tears. I was going 'You have to deliver me this record'."Shields and Butcher became afflicted with tinnitus, and had to delay recording for further weeks while they recovered. Concerned friends and band members suggested this was a result of the unusually loud volumes the group played at their shows, which Shields dismissed as "Ill-informed hysteria." Although Alan McGee was still positive about his investment, the 29-year-old Green, who by this time was opening the label's morning post "shaking with fear," became a concern to his co-workers. Publicist Laurence Verfaillie, aware of the label's inability to cover further studio bills, recalled Green's hair turning grey overnight, which she attributed to the album.With the vocal tracks completed, a final mix of the album was undertaken with engineers Dick Meaney (the Jesus and Mary Chain) and Darren Allison (Spiritualized) at the Church in Crouch End, the nineteenth studio in which Loveless had been worked on. The album was edited on an aged machine that had been used to cut together dialog for movies in the 1970s; its computer threw the entire album out of phase. Shields was able to put it back together from memory, but took thirteen days to master the album rather than the usual one, to Creation's dismay.As the previously prolific band were unusually quiet, the British music press began to speculate. Melody Maker calculated that the total recording cost had come close to £250,000; however, McGee, Green, and Shields dispute this. Shields argued that the estimated cost and Creation's near-bankruptcy were a myth exaggerated by McGee. According to Shields, "the amount we spent nobody knows because we never counted. But we worked it out ourselves just by working out how much the studios cost and how much all the engineers cost. 160 thousand pounds was the most we could come to as the actual money that was spent." In Green's opinion, the estimate made by Melody Maker was understated by £20,000, and that "once you'd even got it recorded and mixed, the very act of compiling, EQ-ing, etcetera took weeks on its own." In December 1991, Shields said that most of the money claimed to have been spent on the album was simply "money to live on" over three years, with the album itself only costing "a few thousand". He also claimed that the album represented only four months' work over two years. He said that most of the money spent came from the band's own funds, while "Creation probably spent fifteen to twenty thousand pounds of their own money on it, and that's it. They never showed us any accounts, and then they got bought out by Sony.".
Output: What are the first names of the two individuals that Guy Fixsen states they were not allowed to listen to while either were doing a vocal?