TASK DEFINITION: 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.
PROBLEM: Context: Ali Sadiki (born 10 December 1987) is a Zimbabwean professional footballer, who plays as a defender for TP Mazembe in DR Congo.
Question: Which sports team is Ali Sadiki playing for?

SOLUTION: tp mazembe

PROBLEM: Context: The immune system usually protects you from pathogens and other causes of disease. When the immune system is working properly, it keeps you from getting sick. But the immune system is like any other system of the body. It can break down or develop diseases. AIDS is an infectious disease of the immune system caused by a virus. Some diseases of the immune system are noninfectious. They include autoimmune diseases and allergies. Does it make sense for an immune system to attack the cells it is meant to protect? No, but an immune system that does not function properly will attack its own cells. An autoimmune disease is a disease in which the immune system attacks the bodys own cells. One example is type 1 diabetes. In this disease, the immune system attacks cells of the pancreas. Other examples are multiple sclerosis and rheumatoid arthritis. In multiple sclerosis, the immune system attacks nerve cells. This causes weakness and pain. In rheumatoid arthritis, the immune system attacks the cells of joints. This causes joint damage and pain. Autoimmune diseases cannot be cured. But they can be helped with medicines that weaken the immune systems attack on normal cells. Other autoimmune diseases include celiac disease (damages to the small intestine), inflam- matory bowel disease (damage to the digestive tract), psoriasis (damage to the skin), and lupus (damage to the joints, skin, kidneys, heart, and lungs). An allergy occurs when the immune system attacks a harmless substance that enters the body from the outside. A substance that causes an allergy is called an allergen. It is the immune system, not the allergen, that causes the symptoms of an allergy. Did you ever hear of hay fever? Its not really a fever at all. Its an allergy to plant pollens. People with this type of allergy have symptoms such as watery eyes, sneezing, and a runny nose. A common cause of hay fever is the pollen of ragweed. Many people are also allergic to poison ivy ( Figure 1.2). Skin contact with poison ivy leads to an itchy rash in people who are allergic to the plant. Ragweed is a common roadside weed found throughout the United States. Many people are allergic to its pollen. Some people are allergic to certain foods. Nuts and shellfish are common causes of food allergies. Other common causes of allergies include: Drugs, such as penicillin. Mold. Dust. The dead skin cells of dogs and cats, called dander. Stings of wasps and bees. Most allergies can be treated with medicines. Medicines used to treat allergies include antihistamines and corticos- teroids. These medicines help control the immune system when it attacks an allergen. Sometimes, allergies cause severe symptoms, a condition known as anaphylaxis. For example, they may cause the throat to swell so it is hard to breathe. Severe allergies may be life threatening. They require emergency medical care.
Question: autoimmune diseases can be cured with

SOLUTION: autoimmune diseases cannot be cured.

PROBLEM: Context: C.D. "Charlie" Bales, the fire chief of the small American ski town of Nelson, Washington, is intelligent, humorous, charismatic, athletic and skilled. Bales is sensitive about his large nose, which many in town have learned to not mention. He is unable to have it surgically altered because of a dangerous allergy to anesthetics. He is close to many in town, especially his godsister, Dixie, who owns the town diner and several rental homes. He becomes immediately attracted to beautiful newcomer Roxanne Kowalski, an astronomy student renting from Dixie while searching for a new comet. She adores Bales, but only as a friend, preferring Chris, a handsome but dim fireman. Roxanne goes to Bales for help when Chris fails to advance their relationship further than curious glances. Through a turn of events, she falsely believes Chris is deeply intelligent. When Bales informs Chris of Roxanne's interest, Chris gets sick, intimidated by intelligent women. Chris starts to write her a letter, but takes all day with little result. He convinces Bales to write the letter, with prose that soon bowls over Roxanne. When informed that Roxanne wants to meet him, Chris again gets sick and refuses to meet until Bales comes up with a plan to allow him to be as brilliant as his letter makes him appear. Chris arrives at Roxanne's house with a hunter's cap on, hiding the earphones that relay Bales' words. When the equipment fails, Chris bungles the meeting by speaking his own crass thoughts. After Roxanne storms back into the house furious, Chris begs Bales to fix his mess again. At first he repeats what he is told from under a tree beneath Roxanne's window, but soon also ruins that. Then they switch jackets and hats so Bales can speak the words as Chris. They achieve their goal, and she invites Chris in to make love. Roxanne gets word about the comet and has to go out of town for a week. Since she can't find Chris, she gives Bales the address of her hotel and asks him to tell Chris to write to her. Bales writes her several times a day, each letter more incredible than the last. They affect Roxanne so deeply that she returns early. Bales is writing a new letter to her in Dixie's diner when he finds out that Chris (who knows nothing about the letters) is on his way to see Roxanne. He arrives at her home and warns Chris that Roxanne would be mentioning some letters that he supposedly wrote. She tries to get Chris to be the man in the letters, revealing that his looks are only secondary to her. Knowing that his looks are all he has, Chris runs out, leaving her confused. Dixie puts the last letter under her door and after reading it, Roxanne calls Bales over. Chris prepares to leave town with a bartender, Sandy, whom he met while Roxanne was away. When she asks if he has told Roxanne (the women are acquaintances), he replies that he will write her a letter since he has a history of it. Bales arrives, unaware that Roxanne knows the truth. She asks him to read one of the letters and then to look at the back, which shows that Dixie revealed its true author. She explodes in anger that he lied to her. He retorts that he simply wanted to tell her how he felt about her, but she was only interested in Chris's face and body. When he reminds her that it only took a few nice words for Chris to get her into bed, she punches him in the face and throws him out. As he prepares to say more he stops and sniffs the air. He slowly walks back to the firehouse and alerts his team, who then "follow his nose" until they find and extinguish the fire. During their celebration afterwards, someone mentions his nose and although everyone thinks he will get upset, he doesn't. Back home, sitting on his roof, Bales hears someone speaking his words to him. It's Roxanne, declaring that she realizes that it was everything from Bales that she loved, not Chris'
Question: What does Roxanne want to observe?

SOLUTION:
a new comet