Given the task definition, example input & output, solve the new input case.
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.
Example: Passage: Nearing London, Oliver encounters Jack Dawkins, a pickpocket more commonly known by the nickname the "Artful Dodger", and his sidekick, a boy of a humorous nature named Charley Bates, but Oliver's innocent and trusting nature fails to see any dishonesty in their actions. The Dodger provides Oliver with a free meal and tells him of a gentleman in London who will "give him lodgings for nothing, and never ask for change". Grateful for the unexpected assistance, Oliver follows the Dodger to the "old gentleman's" residence. In this way Oliver unwittingly falls in with an infamous Jewish criminal known as Fagin, the gentleman of whom the Artful Dodger spoke. Ensnared, Oliver lives with Fagin and his gang of juvenile pickpockets in their lair at Saffron Hill for some time, unaware of their criminal occupations. He believes they make wallets and handkerchiefs.
Output: Who believes Fagin's gang make wallets and handkerchiefs?.
This question is based on the following sentence in the passage "He believes they make wallets and handkerchiefs". It evaluates the understanding that the pronoun "he" refers to name "Oliver". You can ask questions like this one about most pronouns in a paragraph.

New input case for you: Passage: In January 1978, the Sex Pistols embarked on a US tour, consisting mainly of dates in America's Deep South. Originally scheduled to begin a few days before New Year's, it was delayed due to American authorities' reluctance to issue visas to band members with criminal records. Several dates in the North had to be cancelled as a result. Though highly anticipated by fans and media, the tour was plagued by in-fighting, poor planning and physically belligerent audiences. McLaren later admitted that he purposely booked redneck bars to provoke hostile situations. Over the course of the two weeks, Vicious, by now heavily addicted to heroin, began to live up to his stage name. "He finally had an audience of people who would behave with shock and horror", Lydon later wrote. "Sid was easily led by the nose."Early in the tour, Vicious wandered off from his Holiday Inn in Memphis, looking for drugs. When he was ultimately found, he received a beating from the security team hired by Warner Bros., the band's American label. He subsequently appeared with the words "Gimme a fix" on his chest—accounts vary as to whether the words were written or carved there. During a concert in San Antonio, Vicious called the crowd "a bunch of faggots", before striking an audience member across the head with his bass guitar. In Baton Rouge, he received simulated oral sex on stage, later declaring "that's the kind of girl I like". Suffering from heroin withdrawal during a show in Dallas, he spat blood at a woman who had climbed onstage and punched him in the face. He was admitted to hospital later that night to treat various injuries. Offstage he is said to have kicked a photographer, attacked a security guard, and eventually challenged one of his own bodyguards to a fight—beaten up, he is reported to have exclaimed, "I like you. Now we can be friends.".
Output:
What is the first name of the person who challenged one of his own bodyguards to a fight?  ?