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: Blood is a liquid connective tissue. It circulates throughout the body via blood vessels due to the pumping action of the heart. You couldnt survive without the approximately 4.5 to 5 liters of blood that are constantly being pumped through your blood vessels. Blood consists of both liquid and cells. The liquid part of blood is called plasma. Plasma is a watery, golden-yellow fluid that contains many dissolved substances. Substances dissolved in plasma include glucose, proteins, and gases. Plasma also contains blood cells. There are three types of blood cells: red blood cells, white blood cells, and platelets. You can see all three types in Figure 18.8. 1. Red blood cells are shaped like flattened disks. There are trillions of red blood cells in your blood. Each red blood cell has millions of molecules of hemoglobin. Hemoglobin is a protein that contains iron. The iron in hemoglobin gives red blood cells their red color. It also explains how hemoglobin carries oxygen. The iron in hemoglobin binds with oxygen molecules so they can be carried by red blood cells. 2. White blood cells are larger than red blood cells, but there are far fewer of them. Their role is to defend the body in various ways. For example, white blood cells called phagocytes engulf and destroy microorganisms and debris in the blood. 3. Platelets are small, sticky cell fragments that help blood clot. A blood clot is a solid mass of cell fragments and other substances that plugs a leak in a damaged blood vessel. Platelets stick to tears in blood vessels and to each other, helping to form a clot at the site of injury. Platelets also release chemicals that are needed for clotting to occur. The main function of blood is transport. Blood in arteries carries oxygen and nutrients to all the bodys cells. Blood in veins carries carbon dioxide and other wastes away from cells to be excreted. Blood also transports the chemical messengers called hormones to cells throughout the body where they are needed to regulate body functions. Blood has several other functions as well. For example, blood: defends the body against infections. repairs body tissues. controls the bodys pH. helps regulate body temperature. Red blood cells carry proteins called antigens on their surface. People may vary in the exact antigens their red blood cells carry. The specific proteins are controlled by the genes they inherit from their parents. The particular antigens you inherit determine your blood type. Why does your blood type matter? Blood type is important for medical reasons. A patient cant safely receive a transfusion of blood containing antigens not found in the patients own blood. With foreign antigens, the transfused blood will be rejected by the persons immune system. This causes a reaction in the patients bloodstream, called agglutination. The transfused red blood cells clump together, as shown in Figure 18.9. The clumped cells block blood vessels and cause other life-threatening problems. There are many sets of antigens that determine different blood types. Two of the best known are the ABO and Rhesus antigens. Both are described below. You can also learn more about them by watching this video: ABO blood type is determined by two common antigens, often called antigen A and antigen B. If your red blood cells carry only antigen A, you have blood type A. If your red blood cells carry only antigen B, you have blood type B. If your red blood cells carry both antigen A and antigen B, you have blood type AB. If your red blood cells carry neither antigen A nor antigen B, you have blood type O. Another red blood cell antigen determines a persons Rhesus blood type. This blood type depends on a single common antigen, typically referred to as the Rhesus (Rh) antigen. If your red blood cells carry the Rhesus antigen, you have Rhesus-positive blood, or blood type Rh+. If your red blood cells lack the Rhesus antigen, you have Rhesus-negative blood, or blood type Rh-. Some diseases affect mainly the blood or its components. They include anemia, leukemia, hemophilia, and sickle- cell disease. Anemia is a disease that occurs when there is not enough hemoglobin 
 Question: __genetic disorder in which abnormal hemoglobin causes red blood cells to change shape
Example Output: sickle- cell disease

Example Input: Context: The film opens in Tokyo, where 27-year-old office worker Taeko Okajima, is planning to take a 10-day vacation. Having previously visited her sister's husband's farm in Yamagata. She had a good time there before, and has decided to go back again.As she prepares for her trip, her mind drifts back to her youth, when she was 10-years-old. After school lets out, almost all of Taeko's classmates have interesting places they are going to go to, but Taeko does not. When she brings this up to her family, they suggest that Taeko go with the family's Grandmother to a hot springs resort.Taeko eagerly goes with her Grandmother, but finds herself bored when all her Grandmother wishes to do is relax in their room. Taeko goes exploring the myriad baths in the resort by herself, but due to either the overwhelming beauty of one bath (or the heat of the baths), she passes out.While packing, she receives a call from her older sister whose husband owns the farm, and they have a laugh over the past incident.On her way to the train to the farm, Taeko passes by a fruit stand, and is reminded of when the family received a pineapple.This also happened during her 10th year, and she recalls how almost noone knew how to properly cut it. Her father decreed that it would not be touched until it was found out, and a few days later, one of Taeko's sister finds out. There is much eagerness once it is sliced into pieces, but slowly, the family quickly discerns they do not like its taste. Taeko attempts to stomach the pieces she has, and her sisters give her their pieces. In the end, the family concluded that the banana is the "king of fruits."Making it to the train station, Taeko also recalls more about the year 1966, when she was 10-years-old. With the popularity of the Beatles in full-swing, her sisters became enamored with the trends of the time. Her sister Nanako was in art school, and kept up with trends, including wearing a mini-skirt. Her other sister Yaeko had a small crush on an actress in a female acting troupe. However, while her sisters remember these things fondly, Taeko recalls she was too young to really get into these trends like her older sisters.One day after showing her Mother her grades, her Mother finds leftovers from her lunch, and expresses her disappointment in her daughter being picky, and not finishing her food. The next day at lunch, she is sitting next to a boy who is fine with finishing the radish and onion portion of his meal, but dislikes finishing his milk (per school rules, a student can only leave one item to be thrown away from their meal). Taeko offers to give him her radish and onions, and she'll finish his milk. The two quickly make a trade, but Taeko quickly finds that though she has no problems drinking milk, there's a bit too much for her to enjoy a second bowl.Afterwards, Taeko and several of her friends take part in a classroom debate. The topics cover everything from running in the halls, to handling leftovers. Not much is done regarding the issues, and there is much bickering and yelling.After remembering these things, the adult Taeko boards her train for the farm.Once aboard, her memories shift back to an encounter, where three girls from another class gigglingly inform her that a boy in their class named Hirota likes her. Taeko has no idea who Hirota, and her friends show her some graffiti near the school, showing Taeko and Hirota's name under an umbrella-like drawing. Her friends do some research, and find out that Hirota is a good pitcher for his classroom's baseball team.One day, both Taeko and Hirota's classes are pitted against each other in a baseball game.Hirota's female classmates eagerly chant that Taeko is watching, and Taeko's friends cheer for their own homeroom team, in defiance of the other girls. During the game, the cold gets to Takeko, and she rushes for the 
 Question: What city was Taeko traveling to?
Example Output: yamagata.

Example Input: Context: We evaluated the predictive value of serum biomarkers and various clinical risk scales for the 28-day mortality of community-acquired pneumonia (CAP). Serum biomarkers including procalcitonin (PCT) and C-reactive protein (CRP) were evaluated in the emergency department. Scores for the pneumonia severity index (PSI); CURB65 (confusion, urea, respiration, blood pressure; age >65years); Infectious Disease Society of America (IDSA) and American Thoracic Society (ATS) guidelines for severe CAP; Acute Physiology, Chronic Health Evaluation (APACHE) II; Sequential Organ Failure Assessment (SOFA); and quick SOFA (qSOFA) were calculated. Receiver-operating characteristic curves for 28-day mortality were calculated for each predictor using cut-off values, and we applied logistic regression models and area under the curve (AUC) analysis to compare the performance of predictors. Of the 125 enrolled patients, 13 died within 28days. The AUCs of the PCT and CRP were 0.83 and 0.77, respectively. Using a PCT level >5.6g/L as the cut-off, the sensitivity and specificity for mortality were 76.9% and 90.2%, respectively. The three pneumonia severity scales showed an AUC of 0.86 (PSI), 0.87 (IDSA/ATS) and 0.77 (CURB65). The AUCs of the APACHE II, SOFA and qSOFA scores were 0.85, 0.83 and 0.81, respectively. The models combining CRP and/or PCT with PSI or the IDSA/ATS guidelines demonstrated superior performance to those of either PSI or the IDAS/ATS guidelines alone. In conclusion, serum PCT is a reliable single predictor for short-term mortality. Inclusion of CRP and/or PCT could significantly improve the performance of the PSI and IDAS/ATS guidelines. 
 Question: CURB65 score is used for stratification of which disease?
Example Output:
pneumonia