TASK DEFINITION: The task is about reading the given story and question, then finding an answer to the given question. Based on the passage provided and the given question, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.
PROBLEM: story: The Oscars ceremony at the 87th Academy Awards took place in Hollywood's 3,300-seat Dolby Theatre in California on Sunday evening(Feb.23, 2015). The night concluded with the biggest award of the evening, Best Picture. After already securing the Best Screenplay and Best Director Award for Alejandro Gonzalez Inarritu, Birdman took flight as the winner of the night. 

Competing with 7 other contenders including another much-predicted winner "Boyhood", the top prize of the night was finally awarded to the film "Birdman". The director of "Birdman" was also awarded the Best Director Oscar by the Academy. In addition, the film took home two other awards for Best Original Screenplay and Cinematography. 

Starring Michael Keaton, the dark comedy "Birdman" tells the story of a faded Hollywood star, famous for his roles as the "Birdman superhero", who struggles to win the support and confidence to perform in a different character type in a Broadway show. 

The Academy's Best Leading Actor award went to Eddie Redmayne, for his performance in the film "the Theory of Everything". It was the actor's first nomination and first win. 

Meanwhile, the Best Leading Actress award went to Julianne Moore who plays a college professor who learns that she is suffering from early-onset Alzheimer's disease. 

Patricia Arquette also won her first Oscar for her supporting actress role in the movie "Boyhood", while J.K. Simmons won the Best Supporting Actor in "Whiplash". 

Best foreign Language film went to "Ida", while "Crisis Hotline" won the award for Best Documentary Short Subject., question: Where did the Oscars ceremony take place?

SOLUTION: They took place in Hollywood's 3,300-seat Dolby Theatre in California.

PROBLEM: story: (CNN) -- A 42-year-old immigrant from Rwanda, who is accused of lying her way into the United States after allegedly participating in the 1994 genocide that left up to 800,000 people dead, is going on trial in a New Hampshire federal court. 

Jury selection is set to begin Wednesday in the case of Beatrice Munyenyezi, who allegedly committed fraud in 1995 by denying her alleged involvement in mass rape, murder and kidnappings in Rwanda a year earlier. 

Prosecutors allege Munyenyezi, who is now a U.S. citizen, intentionally lied on a refugee questionnaire and naturalization documents about her role in the infamous slaughter, in which ethnic Hutu militants butchered their Tutsi counterparts over a three-month period. 

They say Munyenyezi, a Hutu, was a member of an extremist group associated with a paramilitary organization that set up roadblocks and targeted fleeing Tutsis and their sympathizers. 

One of the roadblocks was set up outside the Ihuriro Hotel -- an establishment owned by her husband's family, according to the indictment. 

The mother of three is allegedly married to former militia leader Arsene Shalom Ntahobali, who was convicted of war crimes and sentenced to life in prison last year. 

She allegedly lived in the hotel and helped pick out those who arrived at a nearby checkpoint to be executed and raped, the indictment said. She also is accused of stealing her victims' belongings. 

Her attorney, Mark Howard, said his client "categorically denies that she committed any acts of genocide, or committed any crimes, as the prosecution alleges here." , question: Who was her husband?

SOLUTION: Arsene Shalom Ntahobali,

PROBLEM: story: Omaha is the largest city in the state of Nebraska and the county seat of Douglas County. Omaha is located in the Midwestern United States on the Missouri River, about north of the mouth of the Platte River. Omaha is the anchor of the Omaha-Council Bluffs metropolitan area, which includes Council Bluffs, Iowa, across the Missouri River from Omaha. According to the 2010 census, Omaha's population was 408,958, making it the nation's 44th-largest city; this had increased to 446,970 as of a 2016 estimate. Including its suburbs, Omaha formed the 60th-largest metropolitan area in the United States in 2013, with an estimated population of 895,151 residing in eight counties. The Omaha-Council Bluffs-Fremont, Nebraska-IA Combined Statistical Area is 931,667, according to the U.S. Census Bureau's 2013 estimate. Nearly 1.3 million people reside within the Greater Omaha area, comprising a 50-mile (80 km) radius of Downtown Omaha, the city's center. 

Omaha's pioneer period began in 1854, when the city was founded by speculators from neighboring Council Bluffs, Iowa. The city was founded along the Missouri River, and a crossing called Lone Tree Ferry earned the city its nickname, the "Gateway to the West". Omaha introduced this new West to the world in 1898, when it played host to the World's Fair, dubbed the Trans-Mississippi Exposition. During the 19th century, Omaha's central location in the United States spurred the city to become an important national transportation hub. Throughout the rest of the 19th century, the transportation and jobbing sectors were important in the city, along with its railroads and breweries. In the 20th century, the Omaha Stockyards, once the world's largest, and its meatpacking plants gained international prominence., question: Which river?

SOLUTION:
the Missouri River

