In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

[Q]: Context: On 19 July 2012, Teever made his debut for Levadia when he came on as a second-half substitute in a Europa League match against Cypriot side Anorthosis. Link Information: In December 2011, Marko Kristal was appointed as manager. Question: Who was Levadia's manager when Teever made his debut for the club?
[A]: Answer: Marko Kristal


[Q]: Context: Working as the Graffiti Research Lab, Roth and Powderly developed open source tools for graffiti writers and activists, such as LED Throwies and L.A.S.E.R. Tag. Link Information:  LED throwies were invented in 2006 by the artists Evan Roth and James Powderly, the founder of Graffiti Research Lab at Eyebeam Atelier open lab New York City.  Question: Which of the open source tools for graffiti writers and activists that Powderly developed came first?
[A]: Answer: LED throwies


[Q]: Context: During the Battle of Narva, the Russian army was defeated by Charles XII. Link Information: Charles XII positioned his 10,500 men (another 2,000 men were garrisoned in the city and would take part in the battle at a later stage) opposite the besieging Russian army of about 34,000 to 40,000 troops.
 Question: What was the size of Charles XII's army in the Battle of Narva?
[A]:
Answer: 12500