Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.

Example Input: Unfortunately, air conditioners don't live as long as people, and in the brutal conditions of Phoenix, Arizona, air conditioners can have remarkably short lives without proper care and maintenance. The average lifespan of an air conditioner is anywhere from 8 to 15 years, but it's hard to say exactly how long any given air conditioner unit will last. The Biggest Factors in Air Conditioner Lifespans Certain factors can influence how long your air conditioner survives, including the size of the air conditioner unit, your duct design, the amount of use and how much maintenance your unit receives. This allows you to control the flow of cooled air into each room of your home, keeping you more comfortable, and allowing your air conditioner to work more efficiently. Your central air conditioner is designed to last anywhere from 15 to 20 years. While there's a good chance it may last far longer, especially if you're meticulous about maintenance, there are still some very compelling reasons to replace it. Air Conditioner Use. Like anything else with moving parts, the more you use your air conditioner, the faster it's going to break down. No matter how good the unit, the more it runs, the sooner it will need to be replaced. Heat pumps -- If you have an electric heat pump heating system, plan on replacing the exterior unit after about 16 years. Thermostats -- Expect your home's thermostat(s) to last about 35 years. Electric radiant heaters -- The most common of this type of room conditioner might be baseboard heaters. The impact of these items can be minor by themselves, but when several parts of the equation are out of whack, your air conditioner may have a very short life. How the different factors can affect your unit: Air Conditioner Size. The size of your air conditioner affects how efficiently it works, as well as how frequently it switches on and off. The Lifespan of a Central Air Conditioner. Per the United States Department of Energy, the average lifespan of a central air conditioner is about 15 to 20 years. Some units may continue operating well beyond the 20-year mark, and others may need to be replaced before the 15 years has passed. How Long Does a Central Air Conditioner Last? Posted on February 8, 2017 by Glen Feurst Whether you're buying a home with central air already installed or you're thinking about replacing your elderly HVAC unit, it's important to understand that a central air conditioner isn't designed to last forever. Twenty years ago, the brand-new central air conditioner units that were available had an average SEER rating of about 12. Today, new systems have an average SEER rating that ranges from 16 to 18, which is far more efficient. The Biggest Factors in Air Conditioner Lifespans. Certain factors can influence how long your air conditioner survives, including the size of the air conditioner unit, your duct design, the amount of use and how much maintenance your unit receives. Ducting -- The NAHB estimates that the ductwork in your home should last about 10 years. A report done by InterNACHI might be more accurate on this HVAC component: their study indicates that ducts should function properly for 60 to 100 years. Query: how long does a central air conditioner last
Example Output: A central air conditioner lasts 15 to 20 years.

Example Input: Other important facts. 1 Both colds and flu are caused by a virus but the symptoms of influenza are usually more severe. 2 Antibiotics have no effect against influenza. 3 Damp or cold cannot cause influenza. 4 People are seldom infected by the same type of influenza twice because resistance develops within two or four weeks. Pain relief lasts 8-12 hours, about twice as long as other painkillers. May irritate stomach, so take with food. Antihistamines (e.g Benadryl, Chlortrimeton, Tavist-1, Claritin, and Zyrtec) dry mucous membranes and make breathing easier: If you have a cough and a sore throat, it's more likely that you either have a cold or the flu. You'll need to see a doctor for diagnosis of strep throat they can perform a quick test to determine if it is, in fact, the cause of your illness. If it is strep, they'll prescribe antibiotics to help kill the bacteria. When to See a Doctor Few common illnesses are more unpleasant than the flu. The aches and pains, chills, fever, and cough are bad enough; add in the other potential symptoms of flu, including runny nose, vomiting, diarrhea, fatigue, or sore throat, and you'll want the illness to be over as soon as possible. How long does the flu last? And does treating flu help make it go away faster? How long will the influenza last? Usually, influenza lasts three to five days. If it goes on for more than a week or if the symptoms are very severe, you are advised to consult your doctor. A bad case of influenza has the potential to develop into a more serious condition like pneumonia or sinus trouble, and in rare cases it can be life-threatening. Flu symptoms usually start within one to four days after infection. Unlike a common cold, the effects of an influenza virus infection can come on very suddenly. The first signs of the flu are often a fever or chills, accompanied by headache, sore throat, dry cough, runny nose, muscle aches, and fatigue. As the illness progresses, a person may have warm, flushed skin, watery or bloodshot eyes, a severe cough that produces phlegm, and nasal congestion. It can cause mild to severe illness, and at times can lead to death. The flu is different from a cold. The flu usually comes on suddenly. People who have the flu often feel some or all of these symptoms: Fever* or feeling feverish/chills; Cough; Sore throat; Runny or stuffy nose; Muscle or body aches; Headaches; Fatigue (tiredness) Some people may have vomiting and diarrhea, though this is more common in children than adults. * It's important to note that not everyone with flu will have a ... Bird flu is spread to people from birds and causes fever, cough, sore throat and muscle aches. Endocarditis Signs of endocarditis, an infection of the heart, include swelling, rash, sinus congestion, nausea, and more. Virus: Viral upper respiratory infections usually start in the throat and chills and flu like body aches are common. At this stage rest, fluids and tylenol (acetaminophen) are all that's needed. A head cold and mild cough may follow. 1 doctor agreed: 1 Virus illness: Greetings. The cough, throat pain, fever and chills typically last ~5days. 2 It is Flu season: Sounds to me like the beginning of influenza or the flu. Stay hydrated, rest, advil, tylenol (acetaminophen) for fever and warm liquid to soothe your throat. Query: how long does flu last with chills sore throat
Example Output: Flu lasts 5 days with chills sore throat.

Example Input: These tenets have political as well as operational significance. SOF is a very mature force. The average age in a SEAL platoon is 28; for a Special Forces A-team, 32. It takes three years or more to train a new man for duty, and many more years before he becomes an impact player in that unit. It is a business in which talent and experience count. Established by President John F. Kennedy in 1962, the Navy SEALs are a nimble, elite maritime military force suited for all aspects of unconventional warfare. In this role, you will provide immediate military options amidst crises around the world. Your duties as a SEAL may include and are not limited to: just now. Your fine as far as age goes but you do not get 75k, you get 40k upon graduation from SQT, that is about a year plus after you start BUD/S. The average age used to be in the early 20's, not so much anymore, mid to late 20's is the average age now, alot of kids are doing it after college (as enlisted guys). Also, the SEALs are going to High Schools, Colleges, X-Games, Wrestling Tournaments, etc..to do direct recruiting for the teams due to the huge push by SOCOM to get more SEALs. From all my friends who had become SEAL's when I was in, most didn't get into the training program right out of Boot Camp, but instead were accepted into the program after two of three years of active duty. Having been stationed with the seals for several years, the average age seemed to be about 21/22 years. And no, I was not a SEAL. You might be lucky and a current member might respond with a more accurate answer, but in the meantime, I hope this helps. Say the SEALs: Gaps exist in minority representation in both officer and enlisted ranks for Special Warfare operators. Diverse officers represent only ten percent of the officer pool (for example, African Americans represent less than 2% of SEAL officers). Diverse enlisted SEALs account for less than twenty percent of the total SEAL enlisted population. SEAL Teams. NSW has eight Navy SEAL Teams. The odd-numbered Teams (1, 3, 5 and 7) work for Group ONE in Coronado, CA, and 2, 4, 8, and 10 for Group TWO in Little Creek, VA. A SEAL Team is commanded by a Navy Commander (O-5) and is composed of a HQS element and eight operational 16-man SEAL Platoons. Though Navy SEALs are usually more experienced service members, the typical graduate of SEAL qualification training is 19 to 23 years old, said Lt. Cmdr. Fred Kuebler of U.S. Special Operations Command in Tampa, Fla. NSWG-3 is based in Coronado, CA. It commands SEAL Delivery Vehicle Team 1 (SDVT-1) in Pearl Harbor, Hawaii, and SEAL Delivery Vehicle Team 2 (SDVT-2) in Little Creek, VA. This Major Command has worldwide NSW undersea mobility responsibility. Naval Special Warfare Group FOUR. NSWG-4 is based in Little Creek, VA. There appeared to be a lot of guys in their early/mid/Later 20's making it much later in the training (post hell week). Is that an accurate representation of the average BUD/s prospect? I know the official Navy site says 18-28, and 29-30 with age... show more I watched the documentary on the Discovery Channel about BUD/s. There appeared to be a lot of guys in their early/mid/Later 20's making it much later in the training (post hell week). Is that an accurate representation of the average BUD/s prospect? I know the official Navy site says 18-28, and 29-30 with age waivers. Each SEAL Team is commanded by a Navy Commander (O-5), and has a number of operational SEAL platoons and a headquarters element. A SEAL Team has a Staff Headquarters element and three 40-man Troops. Query: average age of seal team member
Example Output:
The average age of Seal team member is 21 or 22 years.