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: Anna, a soon-to-be secondary school graduate, plans to go traveling for a year before attending university, much to the displeasure of her father Tony. Her friends are dealing with their own issues: her best friend John is secretly in love with her, Chris is struggling with a class assignment, and Steph is trying to get her social justice reporting past the tyrannical vice principal Mr. Savage ("Break Away"). Nick, Anna's macho ex-boyfriend, is also making her life difficult ("Hollywood Ending"). The night of the school Christmas show, in which Chris's girlfriend Lisa is performing ("It's That Time of Year"), Anna and John are working in the local bowling alley and Chris and Steph have gone to film for Steph's story. During this time, a zombie infection starts spreading and Lisa, Tony, Savage, and Chris's grandmother are stranded in the school. Anna and John bond over her post-graduation plans on their ways home from work.
The next morning, Anna and John leave for the school, completely oblivious to the zombie chaos around them ("Turning My Life Around"). When they encounter a zombie dressed as a snowman, Anna decapitates him with a seesaw. Figuring it will be too dangerous to go home or to the school, they go to the bowling alley where they meet Steph and Chris, who had taken shelter there. Steph finds out that an army evacuation is coming to the school, so the group plans to go there once it is safe. Anna and Steph find the zombified cleaner and Steph kills her, alerting a group of zombified bowlers to break in. The group kills them all after a bloody fight and realise that getting to their loved ones will be difficult ("Human Voice").
A:
What are the names of Anna's three best friends?