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.
Example solution: 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.

Problem: Passage: Marijuana-smoking, Grand Rapids slacker pizza delivery driver Nick has trouble completing the "30 Minutes or Less" policy and is reprimanded by his boss Chris. Nick's school teacher friend Chet discovers that Nick slept with his twin sister, Kate, on the night of their high school graduation, causing Nick and Chet to end their friendship. Dwayne Mikowlski and Travis Cord, are miserable living under the shadow of Dwayne's domineering father, The Major, who about 10 years prior won over $50 million in the lottery. Dwayne confides in lap-dancer Juicy about his contempt for his father and Dwayne's presumed inheritance. At Travis's suggestion, he and Dwayne devise a plot to kidnap a complete stranger and strap a remote-controlled bomb to his chest. They order a pizza and wait for a driver to come to their hideout. When Nick arrives, Dwayne and Travis assault him and knock him unconscious.
Solution: Whose sister did Nick sleep with?