input question: I am a movie director and I just received the following movie plot. Could you help me answer this question? If not, let me know by writing "Not answerable". Plot title: The Return of Doctor X Movie plot: A pair of bizarre murders occur wherein the victims are drained of their rare Type One blood type. Reporter Walter Garrett (Wayne Morris) consults with his friend Dr. Mike Rhodes (Dennis Morgan) which leads them to Rhodes' former mentor, hematologist Dr. Francis Flegg (John Litel). Flegg is initially unhelpful, but when Garrett and Rhodes notice a striking resemblance between Flegg's strange assistant, Marshall Quesne (Humphrey Bogart) and the late Dr. Maurice Xavier, they confront Flegg. Flegg admits that he used scientific methods to bring Xavier back from the grave and employed a synthetic blood formula to sustain his life. However, the formula is unstable, and therefore, Quesne/Xavier must seek out human victims with the rare Type One blood type contained in the formula in order to stay alive. A hunt is begun for Quesne, who has discovered that Joan Vance (Rosemary Lane), a nurse and Rhodes' sweetheart, is a carrier of the rare blood type. He escapes with her in a taxi, professing to be taking her to Rhodes. Barnett and Rhodes, accompanied by the police, track them to their location. Quesne is shot dead, and Joan is saved from the fate of the others. My question: What is the problem with this synthetic blood????
output answer: It is unstable

input question: I am a movie director and I just received the following movie plot. Could you help me answer this question? If not, let me know by writing "Not answerable". Plot title: Dinner at Eight Movie plot: One week before her next society dinner, Millicent Jordan (Billie Burke) receives word that Lord and Lady Ferncliffe, whom she and her husband Oliver (Lionel Barrymore), a New York shipping magnate, had met in England the previous year, have accepted her invitation. Overjoyed by this social coup, Millicent is oblivious to Oliver's lack of enthusiasm about the dinner and her daughter Paula's (Madge Evans) preoccupation about the impending return of her fiance, Ernest DeGraff (Phillips Holmes), from Europe. Millicent fusses about finding an "extra man" for her single female guest, former stage star Carlotta Vance (Marie Dressler), who resides in Europe. Meanwhile, Oliver faces distressing news about his shipping business, which has been struck hard by the Depression. Carlotta, an aging retired actress and former lover of Oliver, visits Oliver at his office and asks him to buy her stock in the company, but he does not have the money. Dan Packard (Wallace Beery), a mining magnate, stops by long enough for Oliver to ask him to buy some company stock. Dan agrees only to consider the proposition, he then brags to his wife Kitty (Jean Harlow) that he will take the shipping business through deceit. Unknown to Dan, Oliver has convinced Millicent to invite the Packards to her dinner with the hopes that it will increase Dan's wish to buy the stock. Dan's young trophy-wife, the ill-mannered but socially ambitious Kitty (Jean Harlow), eagerly has accepted. Although he at first refuses to go, Dan, who believes that he will soon be appointed to a Cabinet post, changes his mind about the dinner when he finds out that the Ferncliffes, the richest couple in England, are also invited. Also unknown to Dan, one of Millicent's other guests, Dr. Wayne Talbot (Edmund Lowe), has been having an affair with Kitty while pretending to be tending to her feigned illnesses. On the eve of her dinner, Millicent, still short an extra man, telephones Larry Renault (John Barrymore), a washed-up silent movie star, and extends him a last-minute... My question: What type of appointment does Dan want that could be threatened by the revelation regarding his crooked dealings????
output answer: Cabinet appointment

input question: I am a movie director and I just received the following movie plot. Could you help me answer this question? If not, let me know by writing "Not answerable". Plot title: The Blob Movie plot: A meteorite crashes near Arborville, California. An elderly transient discovers, within the sphere, a massive slime mold-like substance (the Blob) that attaches itself to his hand. Three high school students, Brian, Meg and Paul, take him to a hospital. After Brian leaves, Paul witnesses the lower half of the transient melting from exposure to the Blob. As he calls for help, the Blob drops on top of him. Meg arrives to see Paul being devoured by the growing Blob. While she tries to free him, his arm dissolves off, Meg is thrown against a wall and knocked unconscious, and the Blob oozes out of the hospital as Paul attempts to scream in pain while dissolving inside the Blob one last time. After Brian and Meg have unsatisfactory encounters with the police, they meet at a diner where Meg tells Brian about the Blob. Brian is incredibly skeptical of Meg's story. Brian's disbelief is shattered when the diner's handyman, George, is pulled head first through the sink drain by the Blob. It pursues them to the diner's walk-in freezer, but the Blob suddenly retreats after entering the freezer. After consuming the diner's owner, Fran Hewitt, who was trapped in a phone booth, the Blob reenters the sewers. Jacob Meeker witnesses the Blob enter the sewer and he investigates the dark and abandoned diner. Meeker discovers frozen fragments of the Blob near the open freezer door. Meg and Brian return to the police station, where the dispatcher tells them Deputy Briggs is near the meteor-landing site. They discover a military operation led by a scientist, Dr. Meddows, who orders the town quarantined. Brian escapes a military van and collects his motorbike. Meg is taken to town where she learns her younger brother, Kevin, is missing. Meg learns he and his friend, Eddie, have sneaked into the local movie theater. The Blob enters the theater and attacks the staff and then the audience. Meg arrives as the audience is fleeing the theater, rescuing Eddie and Kevin. Brian eavesdrops on Meddows and learns that the Blob is a biological... My question: What causes the Blob to be flash frozen????
output answer:
liquid nitrogen