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 Input:
Context: To evaluate short- and mid-term level of imbalance after vestibular schwannoma (VS) microsurgery by the transpetrosal approach, to search for factors predictive of vestibular compensation, and to determine which patient categories need a postoperative vestibular rehabilitation program. Prospective cohort study at a tertiary referral center. Between 2010 and 2011, patients aged 18 to 75 operated on for VS by transpetrosal approaches were included. VS was characterized by its size (Koos classification) and the presence or not of a cystic component. Hearing was classified according to the Gardner Robertson grading. The preoperative workup included an audiogram, computerized video nystagmography (VNG) with caloric testing, gaze study, rotatory tests, click-evoked cervical vestibular evoked myogenic potential measurements (cVEMPs), and subjective visual vertical test. Patients were asked to complete a Dizziness Handicap Inventory (DHI). Postoperatively, patients were reevaluated on D7 (clinical status), D90 (VNG and DHI), and D180 (DHI). Timing and duration of vestibular rehabilitation were also recorded. Forty-eight patients were included. Preoperatively, 77% experienced mild instability problems with a mean DHI score of 14.1 (range 4-32). Postoperatively, 71% reported stable or even improved perceived stability. Mean DHI scores were 28.1 on D90 and 19.8 on D180. Serviceable hearing, cystic transformation, normal cVEMPs, diplopia, and vestibular syndrome on D7 were found to be predictive of worse equilibrium outcome than when absent. A preoperative caloric deficit greater than 75% seemed to be a good prognostic factor. Vestibular rehabilitation was conducted in 56% of patients. Starting it early (<1 mo) seemed to be beneficial for final equilibrium outcome. VS microsurgery provides good stability results. Some preoperative parameters may be predictive of worse or improved balance recovery, as is clinical status on D7. 
 Question: Which disease can be categorized using the Koos grading system?

Ex Output:
vestibular schwannoma


Ex Input:
Context: In a New York City residence, Pierre Delacroix (Damon Wayans) rises to begin his daily routine. Brushing his teeth, he gives us by voice over a definition of satire. He tells us that with the rise of the Internet, video and interactive games, his field as a television writer has seen a drop in popularity. Meanwhile, in a dilapidated building, squatter Womack (Tommy Davidson) wakes up his friend Manray (Savion Glover) for a day of work. This consists of travelling to the CNS (Continental Network System) building where Delacroix works, and Manray tap dancing to entertain the workers. They then collect money from the workers. The men see Delacroix walk by, and ask him for monetary help in the form of work of some kind.Delacroix walks into a staff meeting late and is immediately castigated by his boss, Thomas Dunwitty (Michael Rapaport). Dunwitty informs the staff that CNS has poor ratings. He says he wants them to write funnier material, and ends the meeting. In the privacy of his office, Dunwitty tells Delacroix that the material Delacroix's been writing for him seems like it's about white people with black faces. Dunwitty asserts that Delacroix is an "oreo" with his Harvard education, because he won't write a "n----r show."The next day, Delacroix and his assistant Sloan Hopkins (Jada Pinkett Smith) talk. They've decided that Manray is the solution to his problem. Delacroix plans to write a show that will be so "offensive and racist," it will prove his point that the network only wants to see black buffoons on the air. Delacroix simply hopes to be fired, so he can be let go of his contract with CNS. Manray and Womack ask at the receptionist's desk for a "Delapoint" and the men working there tell them to step outside. However, Sloan steps into the lobby, sees what's happening, and escorts Manray and Womack to Delacroix's office. Delacroix explains to them that he has an idea for a television pilot, and they can make money with it. His main request is that Manray changes his name to Mantan, in an apparent homage to black character actor Mantan Moreland.On Sloan's walk home, she runs into her big brother Big Blak Afrika F/K/A Julius (Yasiin Bey). In Sloan's apartment, Julius and Sloan argue about his values, and he tells her to introduce him and his political hip-hop crew, the Mau Maus, to Delacroix.Delacroix has another meeting with Dunwitty. Delacroix proposes that the network start a variety show called "Mantan: The New Millenium Minstrel Show." Delacroix says that new faces are needed for the show, and has Sloan bring in Manray and Womack. The two men, respectively renamed "Mantan" and "Sleep'n Eat," will exhibit a range of stereotypical traits, Delacroix explains. Sloan is opposed to the proceedings, and suggests that there will be protest of the show they are planning. To seal the package, Manray dances atop a table in front of Dunwitty -- who immediately leaves to try to sell the show's concept to his executive bosses.Delacroix, Sloan and another woman hold auditions for the show. The first group of people (The Roots) audition to be the show's house band, The Alabama Porch Monkeys. After they perform, a dancer, a vulgar man shouting "I be smackin' my hoes," and a didgeridoo player all audition. The next hopeful is Honeycutt (Thomas Jefferson Byrd), an actor who bungles Shakespearean quotes and proclaims "N----s is a beautiful thing." Sloan's brother's group, the Mau Maus then do a fiery, confrontational performance; Pierre states via voice over that there is no place for them in his plan.Delacroix looks over a revised script for the show and confronts Dunwitty and his co-writer, Jukka about their alterations to it that even he finds racially offensive. Delacroix says that he won't be responsible for their changes, which Dunwitty says are to make the show funnier. Dunwitty says he knows black people better than Delacroix does, telling him, "Look 
 Question: Who is Delacroix's personal assistant?

Ex Output:
sloan hopkins


Ex Input:
Context: The film is based on the Auguste Le Breton novel, Du rififi chez les femmes, published in 1957 and reprinted in 2010. 
 Question: The person that directed Du rififi chez les femmes was what?

Ex Output:

auguste le breton