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: After seeing several patients, Travis, a troubled psychiatrist, is contacted at home by a patient, Rachel.  Travis invites her into his apartment, though he acknowledges this is unorthodox.  As they talk, Rachel sees Travis take several pills, which he explains are to help him deal with the mounting stresses in his life.  After they kiss, Rachel offers to help him, and Travis laughs derisively.  Hurt, Rachel leaves his apartment and goes to the top of the apartment building, where she phones him.  When he realises she means to commit suicide, he races upstairs, only to see her leap to her death.  After one of his patients taunts him over this rumor, Travis reacts violently and is put on leave, though he angrily quits instead.
Grace, a young woman, hands out pamphlets on a train and invites Travis to a support group.  Though dismissive, Travis takes one of her pamphlets.  After drinking heavily and becoming depressed over his life, Travis attends the meeting.  Travis is disgusted when the group's leader, Father Jay, a military veteran and former drug addict, forces a young member, Marcus, to confront difficult personal issues in public.  As Travis leaves, Grace urges him to seek the group's support.  After a suicide attempt in which he overdoses on pills, Travis calls the group before slipping into unconsciousness.  Father Jay, Grace, and another member, Tom, arrive and induce vomiting, saving his life.
Solution: Who is invited into the apartment?