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: 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?
[A]: Answer: 1943

[Q]: Context: The Georgia Southern Eagles football program represents Georgia Southern University Link Information: Georgia Southern University (GS) is a public research university in the U.S. state of Georgia. Its flagship campus is in Statesboro, and other locations include the Armstrong Campus in Savannah and the Liberty Campus in Hinesville. Founded in 1906 as a land grant college, Georgia Southern is part of the University System of Georgia and is the largest center of higher education within the southern half of Georgia. Question: What year was Georgia Southern founded?
[A]: Answer: 1906

[Q]: Context: Tvrtko's father Link Information: Vladislav was a younger son of Stephen I, Ban of Bosnia, and Elizabeth of Serbia. Question: What was the name of Stephen's paternal grandfather?
[A]:
Answer: Stephen I, Ban of Bosnia