You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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.

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.
Solution: Who believes Fagin's gang make wallets and handkerchiefs?.
Why? 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: Passage: Joseph Krauzenberg is a very wealthy Hungarian Jewish industrial tycoon whose fortune is mirrored in the great palaces he owns. However, by 1944 his important businesses are needed by the Nazis and Hitler's 'Final Solution' is sweeping through Europe.
The Nazis are greedy to accumulate wealth as easily as possible, and under the terms of the Third Reich's "Europa Plan", Krauzenberg arranges with Nazi leaders to exchange his fortune, his business holdings (textile plants, steel mills, ownership of several banks) and a collection of rare art for safe passage to Switzerland for himself, his wife Rachel, and their family. As the night of transaction approaches, Krauzenberg visits his large family being held by the Gestapo, and reassures them that all will be safe.
Such is Krauzenberg's wealth and power that when he agrees to sign over his property, it is two of the most powerful men in the Nazi regime who announce they will be coming to his house to handle the paperwork – Adolf Eichmann and Heinrich Himmler.
However, as the Nazi leaders are ushered into Krauzenberg's home, they are struck by something unusual – his two most trusted servants, Hans Vassmann and his wife Ingrid are a married Aryan couple who, despite the law, are still working for Jews.
As it happens, Eichmann and Himmler's suspicions are well-founded – despite appearing to be the perfect Aryan couple, Hans and Ingrid are actually Jews working deep undercover with the underground Resistance. Young, married, in love and expecting their first child, they work as valet and maid for the elderly Jewish couple. They have everything to look forward to or so they would have believed.
Solution:
What is the full name of the person that is married to Rachel?