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 1993, Michael Jackson was accused of sexually molesting 13-year-old Jordan Chandler. Jackson denied the claims and settled the civil case out of court for a payment of $15 million plus legal fees; the settlement included a nondisclosure agreement. No criminal charges were filed. In 2005, following further allegations, prompted by the 2003 documentary Living with Michael Jackson in which he was holding hands with a boy named Gavin Arvizo and talked about his sleepovers with children, Jackson was acquitted of child sexual abuse charges.In 2013, choreographer Wade Robson filed a civil lawsuit alleging that Jackson had sexually abused him for seven years, beginning when he was seven years old. In 2014, a case was filed by James Safechuck after seeing an interview with Robson, alleging sexual abuse over a four-year period from the age of ten. Both had previously testified in defense of Jackson — Safechuck as a child during the 1993 investigation, Robson both as a child in 1993 and as a young adult in 2005. In 2015, Robson's case against Jackson's estate was dismissed on the grounds that it had been filed too late, and in 2017 it was ruled that neither of the corporate entities formerly owned by Jackson could be held accountable for Jackson's alleged actions.In the film, Robson, Safechuck, and their respective families describe their relationship with Jackson. Safechuck and Robson allege that Jackson sexually abused them at his home, Neverland Ranch, and at his other residences across California.Reed described his film as a "study of the psychology of child sexual abuse, told through two ordinary families who were groomed for 20 years by a paedophile masquerading as a trusted friend".
Output:
What is the last name of the person who was holding hands with Gavin?