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'.

[EX Q]: Context: After patrol duty early in October, Lardner returned to escort duty between New Caledonia and the Solomons, then screened task forces operating out of Purvis Bay in the Bougainville Campaign. Link Information: The first phase, in which American troops landed and held the perimeter around the beachhead at Torokina, lasted from November 1943 Question: What year did the Bougainville Campaign begin?
[EX A]: Answer: 1943

[EX Q]: Context: He graduated from the Academy of Fine Arts of Vienna in 1880. He studied in the class of professor Christian Griepenkerl Link Information: Christian Griepenkerl (17 March 1839 22 March 1916) Question: How old was the professor that Predic studied with in Vienna?
[EX A]: Answer: 41

[EX Q]: Context: Mikhail Sumarokov-Elston was born on in 1893 Link Information: In 1906 he entered the second-class tournament of the Bad Homburg Championships, where he defeated Jack Hillyard amongst many to claim his first title. With this he set a record of being the youngest winner ever at the time in the history of the tournament. Question: How old was Mikhail Sumarokov-Elston when he set a record of being the youngest winner ever of the Bad Homburg Tournament?
[EX A]:
Answer: 13