instruction:
In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.
question:
Context: On 17 April 2010, the president of German airline Air Berlin, in an interview with the newspaper Bild am Sonntag, stated that the risks for flights due to this volcanic haze were nonexistent, because the assessment was based only on a computer simulation produced by the VAAC. Link Information: On 17 April 2010, the president of German airline Air Berlin, in an interview with the newspaper Bild am Sonntag, stated that the risks for flights due to this volcanic haze were nonexistent Answer: 3548000
answer:
How many subscribers did the newspaper Bild am Sonntag have the year that the president of German airline Air Berlin, in an interview with the newspaper stated that the risks for flights due to this volcanic haze were nonexistent?


question:
Context: Liu Bei combined forces with Cao Cao and defeated Lü Bu at the Link Information: The Battle of Xiapi was fought between the forces of Lü Bu against the allied armies of Cao Cao and Liu Bei from the winter of 198 to 7 February 199 Answer: from the winter of 198 to 7 February 199
answer:
How long did the fight last in which Liu Bei and Cao Cao defeated Lü Bu?


question:
Context: tense relations between Georgia and then host country Russia, which stemmed from the 2008 Russo-Georgian War. Link Information: During the fighting in South Ossetia, the Russian Air Force repeatedly attacked Tbilisi and its surrounding areas. On 8 August, the Georgian Interior Ministry reported that Vaziani Military Base near the city was hit by two bombs. Prior to the war, the bombed base near Tbilisi had housed the Russian military before the government of Georgia forced their withdrawal. The Daily Telegraph described this bombing as "Russia's revenge". A Georgian military airstrip in Marneuli was attacked and three persons were killed. The Georgian government vacated their offices on 9 August. Georgian authorities reported on 9 August that Russian air attacks had targeted the Baku–Tbilisi–Ceyhan pipeline, but missed. Reporters for Reuters in Tbilisi reported hearing three explosions in the early-morning hours of 10 August and a Georgian Interior Ministry representative said that three bombs were dropped on Tbilisi International Airport by Russian warplanes. A military manufacturing plant near the airport was also attacked by Russia that day. A civilian radar station in Tbilisi was bombed the following day. Although an end to hostilities was declared on 12 August, Russian warplanes did not stop dropping bombs in Georgia throughout 12 August. Answer: 12
answer:

How long did the war that created tense relations between Georgia and Russia last?