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.
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Question: Context: Modeled after US hot website.com, group buying websites are now popular in China. These websites use the power of group buying to get competitive discounts for a daily deal on some best stuff to do, see, eat and buy in the cities across China. Discounts are available within just one click. Zhao lei, a software engineer in Beijing, loves the one-hour lunch break at noon,as it is the best time for him to check "today's special" at his favorite group buying websites . Sometimes he searches for great deals at directory sites devoted to the new shopping space. Zhao spends around 800 yuan($117.65) on group buying every month, mostly to buy food coupons for eating at some nice restaurants and occasionally to find something fun to do. " I love group buying. In addition to the competitive discounts it offers, it helps me get something fun, exciting and new, and such surprises give me a reason to try something new," he said. When he finds a really good bargain, he will send the link to friends or colleagues through MSN,QQ, or e-mail, or share the information at some social networking websites. In doing so, he often gets a certain cut off the price. At some sites, buyers are invited to leave notes about what they want to buy and the website will consider it if similar applications reach a certain number. That is how Zuo got her digital camera after waiting for two months. "It is cool. I want to buy a new digitgal camera for my trip to Switzerland this winter, but I never expected such cheap prices!" Zuo said. 
 Question: What is the passage mainly about?

Answer: group buying


Question: Context: Rudolf Teschner (16 February 1922, Potsdam -- 23 July 2006, Berlin-Steglitz) was a German chess master and writer. 
 Question: What nationality of Rudolf Teschner?

Answer: german


Question: Context: The film opens with an animated prologue revealing the origins of leprechauns, stating that they were summoned by a king to protect his gold from those who would try to steal it. After the death of the king the Leprechauns returned to their places of origin, all except one (Warwick Davis) who remained in the mortal world and through the ages slowly became corrupted and obsessed with the treasure he still guarded. In the present Father Jacob (Willie C. Carpenter) is chased through the construction site of the youth center he had planned on building by the Leprechaun, whose gold Jacob had taken to fund the building project. Using four-leaf clover laced holy water Jacob manages to banish the Leprechaun, summoning demonic hands which drag him underground, but soon after drops dead of injuries inflicted by the Leprechaun during the fight.One year later two down on their luck friends Emily Woodrow (Tangi Miller) and Lisa Duncan (Sherrie Jackson) have their fortune told when the clairvoyant Esmeralda (Donzaleigh Abernathy) who warns them that they will attain great wealth soon, but it must be denied as it will come at a great price and summon a terrible evil. While having a barbecue at the abandoned youth center construction site with Lisa, their stoner friend Jamie Davis (Page Kennedy) and her ex-boyfriend turned drug dealer Rory Jackson (Laz Alonso) Emily falls through a hole and discovers the Leprechaun's gold in an old tunnel where it was hidden by Father Jacob. Splitting up the gold (which is produced in a never ending amount by the chest it was contained in) evenly the quartet of friends use it to fulfill their fantasies, unaware that by taking the gold they have released the Leprechaun, who begins stalking the group (killing a guest who takes one of his coins at a party held by Jamie, prompting the police to temporarily arrest him). At the salon where Emily works the Leprechaun sneaks in and, after killing a regular customer, Doria, on the massage table by breaking her neck, attacks Emily, who barely escapes and warns Rory and the recently released Jamie, who rush to get to Lisa's. In her house Lisa is attacked by the Leprechaun and manages to fight him off for a short while, but is killed when the Leprechaun claws her in the stomach, with her friends finding her body moments later.While Emily and Jamie want to return the gold Rory does not and takes off with it; shortly after realizing Rory is gone Emily is attacked and chased outside by the Leprechaun, but is saved when Rory has a change of heart and comes back for her. Searching for Rory the Leprechaun stops by his house and kills Rory's profligate girlfriend Chanel (Keesha Sharp) by tearing out her upper jaw, reclaiming the gold she used to make a tooth while Rory and Emily are stopped and harassed by Officers Thompson (Beau Billingslea) and Whitaker (Chris Murray). After the Leprechaun appears and kills the two officers Emily and Rory escape and regroup with Jamie, only to be confronted by a machine gun wielding group of Rory's drug dealing rivals, led by Watson (Shiek Mahmud-Bey) and Cedric (Sticky Fingaz). Planning on executing Rory for infringing on their territory Watson and his gang are all disposed of by the Leprechaun, (who kills Watson and Cedric while the other two members run off) while Emily, Rory and Jamie drive off in Watson's car (which the Leprechaun latches to the bottom of for a short while) and go looking for help from Esmeralda.Advised to use four-leaf clovers against the Leprechaun by Esmeralda, Rory laces the hollow-point bullets of his gun with clovers Jamie finds in the marijuana Rory had earlier sold him. When the Leprechaun arrives Rory shoots him several times with the clover bullets, only for his gun to jam before he can finish the Leprechaun off. Rory and Emily are given the chance to run with the gold when the Leprechaun is distracted by Jamie and Esmeralda (the latter dying in a magical duel with the Leprechaun). Followed to the roof of the building Rory tries fighting the Leprechaun and is knocked out, though before the Leprechaun can kill him 
 Question: Whom does Jacob mange to banish?

Answer:
the leprechaun.