input question: Question: What are being ravaged by U-boats? If there is no answer, please output "Insufficient information to provide an answer.". Movie title: Sink the Bismarck! Context: In 1939, Nazi Germany's largest and most powerful battleship, Bismarck, is launched in a ceremony at Hamburg with Adolf Hitler attending. The launching of the hull is seen as the beginning of a new era of German sea power. Two years later, in 1941, British convoys are being ravaged by U-boats and surface raider attacks that cut off supplies essential for Britain's abilities to continue the war. In May, British intelligence discovers the Bismarck and the heavy cruiser Prinz Eugen are about to break out of the Baltic and into the North Atlantic to attack convoys. Meanwhile, a spy in Norway spots the Bismarck and its escort Prinz Eugen; he attempts to alert the British by telegraph but he is discovered by the Germans and killed. The spy is only able to message that one of the ships is Prince Eugen but is shot before he can message that the second ship was the Bismarck. The man assigned to co-ordinate the hunt is the Admiralty's chief of operations, Captain Jonathan Shepard (Kenneth More), who has been distraught over the death of his wife in an air raid and the sinking of his ship by German ships commanded by Admiral Gunther Lutjens (Karel Stepanek). Upon receiving his new post, Shepard discovers Lutjens is the fleet commander on the Bismarck. Shepard's experience of conflict with Nazi Germany's Kriegsmarine and his understanding of Lutjens allow him to predict the Bismarck's movements. Shepard acts coldly to his staff but comes increasingly to rely on the coolness and skill of his assistant, WRNS Second Officer Anne Davis (Dana Wynter). Lutjens is also bitter. After the First World War, he considered that he had received no recognition for his efforts in the war. Lutjens promises the captain of the Bismarck, Ernst Lindemann (Carl Mohner), that this time, he and Germany will be remembered in greatness. Next morning near Iceland Bismarck and Prinz Eugen encounter HMSHood and HMS Prince of Wales. The four warships engage in a heavy battle. During the battle a shell from Bismarck hits the Hood slightly...???
output answer: British convoys.

Question: Whose ghost does Harry speak to? If there is no answer, please output "Insufficient information to provide an answer.". Movie title: Harry Potter and the Deathly Hallows Part 2 Context: After burying Dobby, Harry Potter asks the goblin Griphook to help him, Ron, and Hermione break into Bellatrix Lestrange's vault at Gringotts bank, suspecting a Horcrux may be there. Griphook agrees, in exchange for the Sword of Gryffindor. Wandmaker Ollivander tells Harry that two wands taken from Malfoy Manor belonged to Bellatrix and to Draco Malfoy, but Malfoy's has changed its allegiance to Harry. In Bellatrix's vault, Harry discovers the Horcrux is Helga Hufflepuff's cup. He retrieves it, but Griphook snatches the sword and abandons the trio, leaving them cornered by security. The three release the dragon guardian and flee on its back. Harry sees a vision of Voldemort killing goblins, including Griphook, and learns Voldemort is aware of the theft. Harry also realises there is a Horcrux at Hogwarts somehow connected to Rowena Ravenclaw. The trio apparate into Hogsmeade, where Aberforth Dumbledore reluctantly instructs the portrait of his deceased younger sister, Ariana, to fetch Neville Longbottom, who leads the trio through a secret passageway into Hogwarts. Severus Snape hears of Harry's return and warns staff and students of punishment for aiding Harry. Harry confronts Snape, who flees after Minerva McGonagall challenges him to a duel. McGonagall gathers the Hogwarts community for battle. At Luna Lovegood's insistence, Harry speaks to Helena Ravenclaw's ghost, who reveals that Voldemort performed "dark magic" on her mother's diadem, which is in the Room of Requirement. In the Chamber of Secrets, Ron and Hermione destroy the Horcrux cup with a Basilisk fang. In the Room of Requirement, Draco, Blaise Zabini and Gregory Goyle attack Harry after he finds the diadem, but Ron and Hermione intervene. Goyle casts a Fiendfyre curse and, unable to control it, is swallowed up by the flames while Harry and his friends save Malfoy and Zabini. Harry stabs the diadem with the Basilisk fang and Ron kicks it into the Room of Requirement, where it is destroyed. As Voldemort's army attacks, Harry, seeing into...
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Answer: Helena Ravenclaw's

Problem: Given the question: Question: What is Hoffman's girlfriend? If there is no answer, please output "Insufficient information to provide an answer.". Movie title: Antitrust Context: Working with his three friends at their new software development company Skullbocks, Stanford graduate Milo Hoffman is contacted by CEO Gary Winston of NURV (Never Underestimate Radical Vision) for a very attractive programming position: a fat paycheck, an almost-unrestrained working environment, and extensive creative control over his work. Accepting Winston's offer, Hoffman and his girlfriend, Alice Poulson, move to NURV headquarters in Portland, Oregon. Despite development of the flagship product (Synapse, a worldwide media distribution network) being well on schedule, Hoffman soon becomes suspicious of the excellent source code Winston personally provides to him, seemingly when needed most, while refusing to divulge the code's origin. After his best friend, Teddy Chin, is murdered, Hoffman discovers that NURV is stealing the code they need from programmers around the worldincluding Chinand then killing them to cover their tracks. Hoffman learns that not only does NURV employ an extensive surveillance system to observe and steal code, the company has infiltrated the Justice Department and most of the mainstream media. Even his girlfriend is a plant, an ex-con hired by the company to manipulate him. While searching through a secret NURV database containing surveillance dossiers on employees, he finds that the company has information of a very personal nature about a friend and co-worker, Lisa Calighan. When he reveals to her that the company has this information, she agrees to help him expose NURV's crimes to the world. Coordinating with Brian Bissel, one of Hoffman's friends from his old startup, they plan to use a local public-access television station to hijack Synapse and broadcast their charges against NURV to the world. However, Calighan turns out to be a double agent, foils Hoffman's plan, and turns him over to Winston. Hoffman had already confronted Poulson and convinced her to side with him against Winston and NURV. When it became clear that Hoffman had not succeeded, a backup plan is put...
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The answer is:
A plant from NURV.