In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

Passage: The Slaters of Wolverhampton are plagued with Mrs. Slater's chronic debilitating asthma and her cooking limited to what comes in canned goods that she can heat in boiling water. Mr. Alan Slater is sick with worry and has a cantankerous personality. Nigel longs for a life that is more than a succession of canned-food dinners made from what can be heated in boiling water. When dinner is burnt, the standard substitute of toast is always served. He loves toast, with the crunchy outside giving way to buttery softness inside. Despite her infrequent forays into cooking meals from scratch, his mother's attempts to improve her cooking change nothing before or after her death. His father continues in widowhood with the same cooking style and frequent dinners of toast. The experience brings Nigel to conclude that he is not liked. Nigel learns from a friend that the way in which he could attempt a better relationship with his father is to cook a meal for him.
His cooking efforts are thwarted by the new housekeeper, the married and "common" Mrs. Joan Potter, who seduces Alan with her apple pie and array of gourmet meals. The two start to spend time together: at one point, she exiting her council house through an upstairs window so as not to be found out by her husband. Without announcement, the Slaters move to the Herefordshire countryside along with Mrs. Potter. Nigel co-exists with her but never accepts her. She makes a competition of cooking when the teenaged Nigel's shows an emerging interest in developing his skills at school home economics class cookery lessons. Mrs. Potter's lemon meringue pie becomes Nigel's quest to learn the secret recipe.
Question: While Nigel's mom has asthma, what makes his dad ill?
worry.

Passage: Three years after the destruction of the Death Star, the Rebel Alliance, led by Princess Leia, has set up a new base on the ice planet of Hoth. The Imperial fleet, led by Darth Vader, continues to hunt for the new Rebel base by dispatching probe droids across the galaxy. Luke Skywalker is captured by a wampa while investigating one such probe, but manages to escape from the wampa's lair with his lightsaber. Before Luke succumbs to hypothermic sleep, the Force ghost of his late mentor, Obi-Wan Kenobi, instructs him to go to Dagobah to train under Jedi Master Yoda. Han Solo locates Luke and cuts open the tauntaun he rode there on to keep his friend warm; they wait there until being rescued by a search party the next morning.
Meanwhile, the probe alerts the Imperial fleet to the Rebels' location. The Empire launches a large-scale attack using AT-AT walkers to capture the base, which forces the Rebels to retreat. Han and Leia escape with C-3PO and Chewbacca on the Millennium Falcon, but the ship's hyperdrive malfunctions. They hide in an asteroid field, where Han and Leia grow closer amidst tension and briefly kiss. Vader summons bounty hunters to assist in finding the Falcon. Luke, meanwhile, escapes with R2-D2 in his X-wing fighter and crash-lands on the swamp planet of Dagobah. He meets a diminutive creature who reveals himself to be Yoda; after conferring with Obi-Wan's spirit, Yoda reluctantly accepts Luke as his student.
Question: Who is told to go train under Yoda?
Luke.

Passage: Swift's personal life is the subject of constant media attention. In 2013, Abercrombie & Fitch marketed a slogan T-shirt with a "slut-shaming" remark directed toward her. The New York Times asserted that her "dating history has begun to stir what feels like the beginning of a backlash" and questioned whether Swift was in the midst of a "quarter-life crisis". Swift has said that she is unwilling to discuss her personal life in public, as she believes that talking about it can be "a career weakness".
Rolling Stone remarks upon her polite manner: "If this is Swift's game face, it must be tattooed on because it never drops." The magazine also takes note of her "ease with glad-handing", and The Hollywood Reporter credits her as "the Best People Person since Bill Clinton". While presenting Swift an award for her humanitarian endeavors in 2012, Michelle Obama described her as a singer who "has rocketed to the top of the music industry but still keeps her feet on the ground, someone who has shattered every expectation of what a 22-year-old can accomplish". Swift considers Michelle Obama to be a role model. Swift is one of the most followed people on social media, and is known for her friendly interactions with her fans. She has delivered holiday gifts to fans by mail and in person, dubbed "Swiftmas". She considers it her "responsibility" to be conscious of her influence on young fans, and has said that her fans are "the longest and best relationship I have ever had".Often described by the media as "America's Sweetheart", Swift insists that "I don't live by all these rigid, weird rules that make me feel all fenced in. I just like the way that I feel like, and that makes me feel very free". She refuses to take part in overly sexualized photo-shoots, although Bloomberg L.P. views her as a sex symbol. Swift was named an Icon of American Style by Vogue in 2011. In 2014 she topped People's annual best dressed list. In 2015, she was named Woman of the Year at the Elle Style Awards, and ranked first in Maxim's Hot 100 list.Swift has also appeared in various power listings. Due to her success and earnings, she was included in Time's annual list of the 100 most influential people in 2010, 2015, and 2019. From 2011 to 2015, she appeared in the top three of the Forbes Top-Earning Women in Music with earnings of $45 million, $57 million, $55 million, $64 million and $80 million respectively. In 2015, she became the youngest woman ever to be included on Forbes' 100 most powerful women list, ranked at number 64. In 2016, Swift topped Forbes' annual list of the 100 highest-paid celebrities with $170 milliona feat that entered the Guinness World Recordsand also ranked among the top ten in 2011, 2013 and 2015. She was one of the finalists for Time Person of the Year in 2014, and was named so in 2017 as part of the "Silence Breakers" who spoke up about sexual assault. In June 2017, Forbes estimated Swift's net worth to be $280 million.
Question: What is the name of the person who, in 2015, became the youngest woman ever to be included on Forbes' 100 most powerful women list, ranked at number 64?
Swift.