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: Regina is a lonely young college student. The rest of the students are leaving for spring break, but Regina has no money and no plans. As she is opening her mail, she notices she's received a mysterious letter telling her that she's won a free vacation at a seaside bed and breakfast called the Red Wolf Inn. When she calls the phone number in the letter, they tell her that a private plane is waiting for her at the airport, and that she'd better hurry. The plane takes her to a remote rural destination, where she is greeted by a handsome but odd young man who says his name is Baby John Smith. Baby John takes her on a thrill ride speeding through town and evading the police. When Regina enjoys the chase instead of being afraid, Baby John is impressed. 
Arriving at the Inn, she is greeted by Henry Smith and Evelyn Smith, the elderly proprietors of the mansion. They identify themselves as Baby John's grandparents. There are two other guests as well, both lovely young females named Pamela and Edwina. Regina asks to use the phone so she can call her mother, but it's out of order. The group sits down to an extravagant meal, during which Evelyn prompts them all to eat more and more. That night, Regina goes to the kitchen to look for antacid. She is terrified when Baby John suddenly emerges from the walk-in refrigerator, brandishing a large knife. Her screaming wakes everyone else in the house, and Baby John apologizes for scaring her. Before going back to sleep, Edwina talks with Regina and says she can tell Regina and Baby John are attracted to one another, and Regina admits that it's true.
Solution: What is the name of the person who got a letter saying they had won a free vacation?