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 input: 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.
Example output: Who believes Fagin's gang make wallets and handkerchiefs?.
Example explanation: 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.
Q: Passage: Joe Dirt is the janitor at a Los Angeles radio station. A producer drags him into the studio to talk live on the air with famous a disc jockey, shock jock Zander Kelly.
Joe tells his life story. As a baby, he had a mullet wig installed because the top of his skull had never formed. At age 8, he was left behind by his parents and sister at the Grand Canyon. He does not know his real surname. After growing up in a series of foster homes and travelling on the road as a kid while camping in the woods, Joe arrived in Silvertown, a small town in the Pacific Northwest, where he met the beautiful Brandy and her dog, Charlie, and became a target for jealousy from Robby, the town bully.
After Brandy's alcoholic father shoots Charlie dead, Joe decides to try to find his parents. He strikes up a friendship with Kicking Wing, an unsuccessful Native American fireworks salesman. In Indiana, Joe has an encounter with a skin cannibal named Buffalo Bob. This brings him unwanted attention from the media, but helps his search.  He travels to Louisiana and works as a high school janitor with "Clem Doore", a former NYC mobster in the Witness Protection Program, with whom he becomes good friends. Joe discovers the address of his old family home and travels to Baton Rouge.
Listening to Joe's story, both Zander and the radio audience initially find him an object of scorn, but Joe's kindness and optimistic outlook on life, as well as his good-natured self deprecation, win them over.
A:
What's the first name of the person missing the top of their skull?