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.

Example Input: Context: Mowat-Wilson syndrome (MWS) is characterized by severe mental retardation with seizures, specific facial dysmorphism, Hirschsprung disease, anomalies of the corpus callosum, and genitourinary and cardiac malformations. The cause of MWS is a de novo mutation in the ZEB2 gene. This report describes a Turkish boy who was clinically diagnosed with MWS and had his diagnosis confirmed by molecular analysis of the ZEB2 gene. The investigation identified a heterozygous complex rearrangement in exon 8 of ZEB2, specifically a 48-nucleotide deletion and a 44-nucleotide insertion that caused a frameshift. MWS is a relatively newly identified disorder, and even MWS patients without Hirschsprung disease can be diagnosed easily based on clinical findings alone. 
 Question: Which gene is responsible for the development of the Mowat-Wilson syndrome?
Example Output: zeb2

Example Input: Context: The Gruffalo is a children's book by writer and playwright Julia Donaldson, illustrated by Axel Scheffler, that tells the story of a mouse, the protagonist of the book, taking a walk in a European forest. 
 Question: What person illustrated The Gruffalo?
Example Output: axel scheffler

Example Input: Context: New Orleans narcotics detective Anthony Stowe (Jean-Claude Van Damme) is a heroin addict who is teetering on the edge of oblivion, and he couldn't care less.At the moment, Stowe is trying to bring down his former partner Gabriel Callahan (Stephen Rea), who has become a drug kingpin. Callahan is trying to, and slowly succeeding at, taking over the New Orleans underworld.Stowe botches a sting operation against Callahan, resulting in the death of fellow cop Maria Ronson (Rachel Grant), whose fiancee, fellow cop Van Huffel (Adam Leese), is furious at Stowe. Chief Mac Baylor (Gary Beadle) has a very blunt chat with Stowe about it. Stowe is approached by fellow cop Walter Curry (Trevor Cooper) to help his nephew beat a drug-dealing charge. Stowe instead turns him over to Baylor, who fires him. After barricading himself in the station bathroom, Walter confronts an unrepentant Stowe and condemns him for betraying his fellow officers.Later, Van Huffel berates Stowe for getting Maria killed. Stowe responds by attacking Van Huffel in front of several officers. Later, Stowe meets with his estranged wife Valerie (Selina Giles), who tells him that she's pregnant, but that he's not the father. Valerie, whose marriage with Stowe is on the rocks, has been seeing a man named Mark Rossini (Mark Dymond), the gym teacher at the school she is principle of. But he may not be the father either. Stowe brashly accuses Valerie of being impregnated by Callahan, and Valerie tells him she never wants to see him again.The only thing keeping Stowe from total collapse is his dogged pursuit of Callahan. But he drunkenly stumbles into an ambush masterminded by Callahan, and is shot in the head by Callahan's right-hand man Jimmy (Stephen Lord).Stowe undergoes emergency surgery, and ends up in a coma. Months later, he recovers to the point that he opens his eyes, and is transported to his and Valerie's house to recover properly.Seven months after getting shot, Stowe has recovered a lot, although he must learn to walk and speak again. He manages to survive an attempt on his life, by someone who appears to be a cop. He's recovered enough to try to get his job back, but that's the one thing that Chief Baylor doesn't want to give him. The coma has led to his decision to become a better man, and to right some wrongs. He reconciles with his wife, although awkwardly, and gives Walter a check for $40,000, part of his insurance money that compensated his time in a coma. Finally, he visits the grave of fellow police officer Serge (William Ash), who once saved Stowe's life but has been killed by an unknown attacker following another failed sting operation.Valerie packs up to move out of the house so she can live with Mark, but after realizing the change that Stowe has undergone, she later decides to leave Mark and come back home. Stowe is convinced by his friend Chad Mansen (Wes Robinson) not to let his wife go, and Stowe goes after her. They miss each other by a few minutes.Just after Valerie returns and meets Chad, some of Callahan's men show up. Jimmy kills Chad, and kidnaps Valerie. Stowe returns to the house, and finds Chad's body, along with Jimmy waiting for him.Van Damme promoting the film in 2007Jimmy takes Stowe to a warehouse where Callahan is waiting. Along the way, Stowe manages to overpower Jimmy and take his gun, but he finds that the odds against him are impossible- and Callahan has Valerie hostage. Van Huffel is revealed to be Callahan's mole on the police force, and the sting operation at the beginning of the film was a set-up. Walter suddenly arrives and saves Stowe. Together they kill all of Callahan's men, including Jimmy and Van Huffel, as Callahan tries to escape with Valerie to his helicopter. Just as Callahan is about to reach it, Stowe appears.In the European DVD ending, each fire a shot that kills the other. Valerie cries out 
 Question: Where is Callahan waiting?
Example Output:
warehouse