Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Spirometry is recommended to aid in diagnosis and management. It is the single best test for asthma. If the FEV1 measured by this technique improves more than 12% following administration of a bronchodilator such as salbutamol, this is supportive of the diagnosis. It however may be normal in those with a history of mild asthma, not currently acting up. As caffeine is a bronchodilator in people with asthma, the use of caffeine before a lung function test may interfere with the results. Single-breath diffusing capacity can help differentiate asthma from COPD. It is reasonable to perform spirometry every one or two years to follow how well a person's asthma is controlled.
How often should you use a bronchodialator to track how well COPD is controlled?
A: unanswerable

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After World War II, due to Ukrainian collaborationism with the Axis powers in an attempt to gain independence, Moscow changed its policy towards repression of the Ukrainian language.
What happened to Moscow policy after World War I?
A: unanswerable

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Within Galicia are the Autopista AP-9 from Ferrol to Vigo and the Autopista AP-53 (also known as AG-53, because it was initially built by the Xunta de Galicia) from Santiago to Ourense. Additional roads under construction include Autovía A-54 from Santiago de Compostela to Lugo, and Autovía A-56 from Lugo to Ourense. The Xunta de Galicia has built roads connecting comarcal capitals, such as the aforementioned AG-53, Autovía AG-55 connecting A Coruña to Carballo or AG-41 connecting Pontevedra to Sanxenxo.
Name another road they responsible for.
A: AG-41

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The nation's military relies heavily on high-tech weapons systems designed and manufactured in Israel as well as some foreign imports. The Arrow missile is one of the world's few operational anti-ballistic missile systems. The Python air-to-air missile series is often considered one of the most crucial weapons in its military history. Israel's Spike missile is one of the most widely exported ATGMs in the world. Israel's Iron Dome anti-missile air defense system gained worldwide acclaim after intercepting hundreds of Qassam, 122 mm Grad and Fajr-5 artillery rockets fire by Palestinian militants from the Gaza Strip. Since the Yom Kippur War, Israel has developed a network of reconnaissance satellites. The success of the Ofeq program has made Israel one of seven countries capable of launching such satellites.
What is one of the most crucial weapons in Israel's military history?
A:
Python air-to-air missile series