Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

[EX Q]: Context: Rick Riker (Drake Bell) is an unpopular student at Empire High with his only friend Trey (Kevin Hart), living with his uncle Albert (Leslie Nielsen) and Aunt Lucielle (Marion Ross). His crush Jill Johnson (Sara Paxton), who hardly notices him, is dating Rick's bully Lance Landers (Ryan Hansen). Rick and Trey are then shown to be on a school trip to an animal research lab. In the lab Rick meets Lou Landers (Christopher McDonald) who coughs up blood because he is terminally ill. Dr. Strom, the head researcher at the lab, then shows his seven mutated dragonflies, though there are only six there because one has escaped which then bites Rick, and causes his neck to swell.The scene then goes to Rick's house where his Aunt Lucille and Uncle Albert are talking on the couch when Rick comes in. He is very sick, and throws up in a fish tank because of his illness and goes up to his room. Albert and Lucille believe Rick is acting strange, so Albert proceeds to talk to Rick. Rick then passes out from the bite.He wakes up the next morning, with a strange video sent to him from a man wanting to speak to him, later adding Rick as a friend on Facebook. Meanwhile, Lou Landers gets into a scientific accident, transforming into the Hourglass who feeds on human life. At a science fair, with a comically rude and mean-spirited Stephen Hawking who gets physically hurt throughout the film, Rick gets into mishaps, such as becoming stuck to water fountains. He then realizes he has superpowers such as the ability to walk on walls, has incredible strength, but cannot fly. He tests his strength in an alleyway, then decides to test how he can walk up walls. He climbs up and begins to break dance, then has a lie-down on the wall and a cat walks up the wall beside him. He then sees an old woman about to be hit by a truck in the road, and just as she is about to get hit he pushes her out of the way and the truck collides with him stopping it.After his heroic feat he is congratulated by passers-by, but as they are congratulating him he looks to his right and sees he has accidentally pushed the woman into a woodchipper and the dog she was holding the lead of up is slowly getting pulled up into the machine as well. Trey offers to become his sidekick, but Rick resigns. His Uncle and he have a brief fight, which reminds Rick when he was younger and rich with his parents who die in a spoof of Batman Begins. His father urges him to invest of all his money in, not Google, but Enron.Rick later watches the girl of his dreams, Jill, who leaves with Lance in his car. Rick wants a car, and he sets out to get money from the bank. He fails though, with no credit or payment.After his uncle is quickly injured, Rick is met by Xavier (Tracy Morgan) at his school for mutants ala X-Men. Rick is told to make a costume, which he does (and later improves), and he becomes known as the Dragonfly. He quickly becomes a sensation, until his fight with the Hourglass, who ends up cutting him with little hourglass blades. The Hourglass then escapes.Jill is then seen walking in an alleyway and is attacked by thugs, but the Dragonfly saves her. The two then try to kiss, but encounter difficulties as Dragonfly is hanging upside down. They eventually kiss for the first time, and Jill thanks him.The scene then goes to a Thanksgiving dinner at Rick's house. During Thanksgiving Landers visits the family (everyone is unaware he is Hourglass). He nearly catches Rick dressed as the Dragonfly, but later manages to figure out his secret identity.Just as Rick and Jill are about to fall in love, the Hourglass comes in and murders Aunt Lucille. After a comical funeral, Rick decides to throw in the towel as a superhero.Trey and Uncle Albert find Rick after the funeral 
 Question: Who plays Rick riker?
[EX A]: drake bell

[EX Q]: Context: Recent genome-wide association studies (GWAS) for Caucasians identified several allelic variants associated with increased risk of developing restless legs syndrome (RLS), also known as Willis-Ekbom disease. Although the pathogenic mechanisms of RLS are not entirely understood, it is becoming increasingly evident that many diseases such as RLS can be attributed to an epistasis. The study objectives were to evaluate whether the associations of RLS with all loci determined in previous GWAS for Caucasians can be replicated significantly for the Korean population and to elucidate whether an epistasis plays a role in the pathogenesis of RLS. DNA from 320 patients with RLS and 320 age- and sex-matched controls were genotyped for variants in the RLS loci. A significant association was found for rs3923809 and rs9296249 in BTBD9 (P < 0.0001 and P = 0.001, respectively); the odds ratio (OR) for rs3923809 was 1.61 (P < 0.0001) to 1.88 (P < 0.0001) and the OR for rs9296249 was 1.44 (P = 0.001) to 1.73 (P = 0.002), according to the model of inheritance. The OR for the interaction between rs3923809 in BTBD9 and rs4626664 in PTPRD was 2.05 (P < 0.0001) in the additive model, 1.80 (P = 0.002) in the dominant model and 2.47 (P = 0.004) in the recessive model. There was no significant association between genotypes of all tested single nucleotide polymorphisms and the mean value of serum iron parameters. Our results suggest that the role of BTBD9 in the pathogenesis of restless legs syndrome is more universal across populations than previously reported and more efforts should be focused on the role of epistasis in the genetic architecture of restless legs syndrome. 
 Question: Willis-Ekbom disease is also known as?
[EX A]: restless legs syndrome

[EX Q]: Context: The aim of this study was to investigate the methicillin-resistant Staphylococcus aureus (MRSA) clones isolated in a Dutch university hospital, situated near the borders of Belgium and Germany, between 2002 and 2006. MRSA strains (n = 175) were characterized using spa and SCCmec typing. The presence of Panton Valentine leukocidin (PVL) was determined. Between 2002 and 2005, ST5-MRSA-IV was predominant, and the spa type of ST5-MRSA-IV changed from t002 to t447. ST5-MRSA-I, ST5-MRSA-II, ST228-MRSA-I, and ST247-MRSA-I were also observed in this period. From 2004, the MRSA genetic background became more diverse, and in 2006, ST5-MRSA-IV was only sporadically observed. From 2005, ST5-MRSA-II, ST8-MRSA-IV, ST22-MRSA-IV, and ST45-MRSA-IV were increasingly observed. Several other MRSA clones, such as ST239-MRSA-III, were found sporadically. Four PVL-positive MRSA isolates were observed, associated with ST80-MRSA-IV and ST8-MRSA-IV. ST5-MRSA-I, ST5-MRSA-II, ST5-MRSA-IV, and ST228-MRSA-I have not been described previously in The Netherlands. 
 Question: What is MRSA?
[EX A]:
mrsa