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: Private investigator Patrick Kenzie (Casey Affleck) and his partner/girlfriend Angie Gennaro (Michelle Monaghan) witness a televised plea by a woman named Helene McCready (Amy Ryan) for the return of her missing daughter Amanda, who was abducted with her favorite doll "Mirabelle". Patrick and Angie are then hired by the child's aunt Beatrice (Amy Madigan) to find Amanda and discover that Helene and her boyfriend "Skinny Ray" (Sean Malone) had recently stolen money from Cheese (Edi Gathegi), a local Haitian drug lord. After Ray is murdered, Patrick and Angie join the police detectives Remy Bressant (Ed Harris) and Nick Poole (John Ashton) with investigating the case and assist in arranging the trade of money for the return of Amanda. Captain Jack Doyle (Morgan Freeman) reads Patrick a telephone transcript of the drug lord setting up an exchange for Amanda. The exchange at a nearby quarry in Quincy is botched and it is believed Amanda drowned; her doll is found in the quarry and returned to Helene. Doyle, whose own daughter was killed years before, takes responsibility for the death and goes into early retirement. Two months later, a seven year old boy is abducted in Everett and Patrick receives information that the boy was taken by a known child molester. After entering the suspect's house and finding evidence of the abducted boy, Patrick returns with Remy and Nick to rescue him. They are seen by the residents and Nick is shot. Patrick enters the house during the shootout and finds one of the residents dead. He retreats into the child molester's room, where he finds the boy's dead body; he then shoots the child molester in the back of the head in a fit of rage. Nick later dies of his wounds. Trying to alleviate Patrick's guilt over the events at the house, Remy unthinkingly confides that he once planted evidence on someone with the help of "Skinny Ray" whom he had initially told Patrick he didn't know. After Nick's funeral, Patrick speaks to a police officer, who tells him that Remy had been asking about the drug lord's stolen money before the drug lord knew it was missing. Patrick then questions Beatrice's husband Lionel (Titus Welliver) in a bar and pieces together that Lionel and Remy had conspired to stage a fake kidnapping in order to take the drug money for themselves and to take Amanda from her neglectful mother's care. At that point, Remy (trying to cover for his earlier mistake) enters the bar, while wearing a latex mask and holding a shotgun, and stages a robbery. He points the shotgun at Lionel's head, but the bartender shoots Remy twice in the back. Remy flees and is pursued by Patrick to the rooftop of a nearby building, where he dies. Patrick is questioned by the police about Remy's death and learns that the police never had a phone transcript like the one that Doyle had read to him prior to the botched exchange. Patrick and Angie drive to Doyle's home, where Patrick finds Amanda living with Doyle and his wife; Doyle was part of the phony kidnapping all along. Patrick threatens to call the authorities, but Doyle attempts to convince him that Amanda is better off living with them than with her mother, and that is reason enough not to get involved. Patrick leaves and discusses the choices with Angie, who says she will leave him if he calls the police, since she also believes Amanda is much better off with the Doyles. In the next scene, the police arrive, Doyle is arrested, Amanda is returned to her mother amidst heavy publicity, and Patrick and Angie break up. Patrick later visits Amanda as Helene is about to leave on a date with someone she met during the publicity over her daughter's disappearance. Helene informs Patrick that Beatrice has been forbidden to visit and is upset about her husband's arrest. Helene has no babysitter for Amanda and when asked, she tells Patrick that Helene's friend, Dottie (Jill Quigg) will watch her, even though she has yet to ask Dottie herself. Patrick volunteers to watch Amanda, who is holding her 
 Question: What weapon did Remy stage a robbery with?
Example Output: shotgun

Example Input: Context: Do you know what your blood type is? Maybe you have heard people say that they have type A or type O blood. Blood type is a way to describe the type of antigens, or proteins, on the surface of red blood cells (RBCs). There are four blood types; A, B, AB, and O. 1. Type A blood has type A antigens on the RBCs in the blood. 2. Type AB blood has A and B antigens on the RBCs. 3. Type B has B antigens on the RBCs. 4. Type O does not have either A or B antigens. The ABO blood group system is important if a person needs a blood transfusion. A blood transfusion is the process of putting blood or blood products from one person into the circulatory system of another person. The blood type of the recipient needs to be carefully matched to the blood type of the donor. Thats because different blood types have different types of antibodies, or proteins, released by the blood cells. Antibodies attack strange substances in the body. This is a normal part of your immune response, which is your defense against disease. For example, imagine a person with type O blood was given type A blood. First, what type of antibodies do people with type O blood produce? They produce anti-A and anti-B antibodies. This means, if a person with type O blood received type A blood, the anti-A antibodies in the persons blood would attack the A antigens on the RBCs in the donor blood ( Figure 1.1). The antibodies would cause the RBCs to clump together, and the clumps could block a blood vessel. This clumping of blood cells could cause death. A person with type O blood has A and B antibodies in his/her plasma; if the person was to get type A blood instead of type O, his/her A antibodies would attach to the antigens on the RBCs and cause them to clump together. People with type A blood produce anti-B antibodies, and people with type B blood produce anti-A antibodies. People with type AB blood do not produce either antibody. The second most important blood group system in human blood is the Rhesus (Rh) factor. A person either has, or does not have, the Rh antigen on the surface of their RBCs. If they do have it, then the person is positive. If the person does not have the antigen, they are considered negative. Recall that people with type O blood do not have any antigens on their RBCs. As a result, type O blood can be given to people with blood types A, B, or AB. If there are no antigens on the RBCs, there cannot be an antibody reaction in the blood. People with type O blood are often called universal donors. The blood plasma of AB blood does not contain any anti-A or anti-B antibodies. People with type AB blood can receive any ABO blood type. People with type AB blood are called universal recipients because they can receive any blood type. The antigens and antibodies that define blood type are listed as follows ( Table 1.1). Blood Type Antigen Type Plasma Antibodies A B AB O A B A and B none anti-B anti-A none anti-A, anti-B Can Receive Blood from Types A,O B,O AB, A, B, O O Can Donate Blood to Types A, AB B, AB AB AB, A, B, O 
 Question: a person with blood type a can receive blood from
Example Output: a and o.

Example Input: Context: Ca2+ is a ubiquitous intracellular messenger responsible for controlling numerous cellular processes including fertilization, mitosis, neuronal transmission, contraction and relaxation of muscles, gene transcription, and cell death. At rest, the cytoplasmic Ca2+ concentration [Ca2+]i is approximately 100 nM, but this level rises to 500-1,000 nM upon activation. In osteoblasts, the elevation of [Ca2+]i is a result of an increase in the release of Ca2+ from endoplasmic reticulum and/or extracellular Ca2+ influx through voltage gated Ca2+ channels. Many of the cellular effects of Ca2+ are mediated by the Ca2+ binding protein, calmodulin (CaM). Upon binding up to four calcium ions, CaM undergoes a conformational change, which enables it to bind to specific proteins eliciting a specific response. Calmodulin kinase II (CaMKII) is a major target of the Ca(2+)/CaM second messenger system. Once bound to Ca(2+)/CaM, the multimeric CaMKII is released from its autoinhibitory status and maximally activated, which then leads to an intraholoenzyme autophosphorylation reaction. Calcineurin (Cn) is another major target protein that is activated by Ca(2+)/CaM. Cn is a serine-threonine phosphatase that consists of a heterodimeric protein complex composed of a catalytic subunit (CnA) and a regulatory subunit (CnB). Upon activation, Cn directly binds to, and dephosphorylates nuclear factor of activated T cells (NFAT) transcription factors within the cytoplasm allowing them to translocate to the nucleus and participate in the regulation of gene expression. This review will examine the potential mechanisms by which calcium, CaM, CaMKII, and Cn/NFAT control osteoblast proliferation and differentiation. 
 Question: Which calcium/calmodulin dependent protein phosphatase is involved in the activation of the family of NFAT transcription factors (Nuclear Factors of Activated T cells)?
Example Output:
can