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: e finally joined No. 66 Squadron RFC in Italy on 10 March 1918. He was assigned to "C" Flight, flying a Sopwith Camel single seat fighter, Link Information: On the 24th of February 1941 the squadron moved to RAF Exeter, before moving again in April to RAF Perranporth in Cornwall to operate fighter sweep missions over the Channel. It moved to Portreath in December 1941 and re-equipped with the Spitfire V. Question: What aircraft beside the Sopwith Camel did No. 66 Squadron RFC operate?
[A]: Answer: Spitfire V.


[Q]: Context: Bush and Yeltsin met in February 1992, declaring a new era of "friendship and partnership". Link Information: none Question: What was the GDP of Russia the year Bush and Yeltsin met and declared a new era of "friendship and partnership"?
[A]: Answer: none


[Q]: Context: This vicious act undermined Della Torre's grab on Milan, aggravated by Pope Gregory X, a Visconti of Piacenza, who in 1273 confirmed Ottone Visconti as legal Archbishop of Milan. Link Information: was Pope from 1 September 1271 to his death in 1276  Question: How long had Gregory X been Pope when he confirmed Visconti's appointment as Archbishop of Milan?
[A]:
Answer: 2