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.

Passage: Mark Bradley is a radio commentator whose pilot, Joe Walker, is flying him across the South Pacific to a conference in Australia. 
Engine trouble develops, and Walker must make a forced landing on the beach of a small, uncharted island inhabited by Dr. Paul Lujan. On the island with Lujan are his three naive daughters, who have never known another man except their father. 
Lujan, unfriendly to the point of hostility, orders the intruders to leave his island, but one of their aircraft's two engines is too badly damaged for them to be able to comply without first making repairs. He grants them a couple days in order to do so. In the meantime he grudgingly introduces Bradley and Walker to his trio of young, beautiful daughters, Venus, Urana, and Mercuria. The two men soon learn that Dr. Lujan was an atomic scientist who fled the civilized world with his family because he fears the havoc being caused by the discovery of nuclear energy.
To the doctor's disapproval, his two older daughters easily fall in love with the two attractive strangers and try to help them, while the third, 16 and jealous of her sisters, tries to foil their plans. This forces them to make a choice between staying on the island with their father or returning with the two men to a civilization they have only experienced via short wave radio broadcasts. When Bradley mentions that he plans on doing a radio broadcast about Lujan and his island location after he returns to civilization, the Dr. begins to scheme a way to keep the men and his daughters on the island.
What is the full name of the person being flown across the South Pacific?

Passage: In January 1980, Michael Stipe met Peter Buck in Wuxtry Records, the Athens record store where Buck worked. The pair discovered that they shared similar tastes in music, particularly in punk rock and protopunk artists like Patti Smith, Television, and the Velvet Underground. Stipe said, "It turns out that I was buying all the records that [Buck] was saving for himself." Through mutual friend Kathleen O'Brien, Stipe and Buck then met fellow University of Georgia students Mike Mills and Bill Berry, who had played music together since high school and lived together in Georgia. The quartet agreed to collaborate on several songs; Stipe later commented that "there was never any grand plan behind any of it". Their still-unnamed band spent a few months rehearsing in a deconsecrated Episcopal church in Athens, and played its first show on April 5, 1980, supporting The Side Effects at O'Brien's birthday party held in the same church, performing a mix of originals and 1960s and 1970s covers. After considering Twisted Kites, Cans of Piss, and Negro Eyes, the band settled on "R.E.M." (which is an acronym for rapid eye movement, the dream stage of sleep), which Stipe selected at random from a dictionary.The band members eventually dropped out of school to focus on their developing group. They found a manager in Jefferson Holt, a record store clerk who was so impressed by an R.E.M. performance in his hometown of Chapel Hill, North Carolina, that he moved to Athens. R.E.M.'s success was almost immediate in Athens and surrounding areas; the band drew progressively larger crowds for shows, which caused some resentment in the Athens music scene. Over the next year and a half, R.E.M. toured throughout the Southern United States. Touring was arduous because a touring circuit for alternative rock bands did not then exist. The group toured in an old blue van driven by Holt, and lived on a food allowance of $2 each per day.During April 1981, R.E.M. recorded its first single, "Radio Free Europe", at producer Mitch Easter's Drive-In Studios in Winston-Salem, North Carolina. Initially distributing it as a four-track demo tape to clubs, record labels and magazines, the single was released in July 1981 on the local independent record label Hib-Tone with an initial pressing of 1,000 copies—600 of which were sent out as promotional copies. The single quickly sold out, and another 6,000 copies were pressed due to popular demand, despite the original pressing leaving off the record label's contact details. Despite its limited pressing, the single garnered critical acclaim, and was listed as one of the ten best singles of the year by The New York Times.
What is the name of the single distributed on the band by a four-track demo at clubs?

Passage: Jackson explored genres including pop, soul, rhythm and blues, funk, rock, disco, post-disco, dance-pop and new jack swing. Steve Huey of AllMusic wrote that Thriller refined the strengths of Off the Wall; the dance and rock tracks were more aggressive, while the pop tunes and ballads were softer and more soulful. Its tracks included the ballads "The Lady in My Life", "Human Nature", and "The Girl Is Mine", the funk pieces "Billie Jean" and "Wanna Be Startin' Somethin'", and the disco set "Baby Be Mine" and "P.Y.T. (Pretty Young Thing)".With Off the Wall, Jackson's "vocabulary of grunts, squeals, hiccups, moans, and asides" vividly showed the singer's maturation into an adult, Robert Christgau wrote in Christgau's Record Guide: Rock Albums of the Seventies (1981). The album's title track suggested to the critic a parallel between Jackson and Stevie Wonder's "oddball" music personas: "Since childhood his main contact with the real world has been on stage and in bed." With Thriller, Christopher Connelly of Rolling Stone commented that Jackson developed his long association with the subliminal theme of paranoia and darker imagery. AllMusic's Stephen Thomas Erlewine noted this on the songs "Billie Jean" and "Wanna Be Startin' Somethin'". In "Billie Jean", Jackson depicts an obsessive fan who alleges he has fathered her child, and in "Wanna Be Startin' Somethin'" he argues against gossip and the media. "Beat It" decried gang violence in a homage to West Side Story, and was Jackson's first successful rock cross-over piece, according to Huey. He also observed that the title track "Thriller" began Jackson's interest with the theme of the supernatural, a topic he revisited in subsequent years. In 1985, Jackson co-wrote the charity anthem "We Are the World"; humanitarian themes later became a recurring theme in his lyrics and public persona.

What is the last name of the person whose humanitarian themes later became a recurring theme in his lyrics and public persona?