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: . In 1376, he voyaged to lands along the Vychegda and Vym rivers Link Information: none Question: Which of the rivers along which Stephen traveled in 1376 has the widest point?
[EX A]: Answer: none

[EX Q]: Context: In this capacity, he persuaded Raphael, the abbot of Pannonhalma to borrow 40 silver denari Link Information: none Question: Who is the latest person to hold the position of the person Héder persuaded to borrow  40 silver denari?
[EX A]: Answer: none

[EX Q]: Context: When King Sebastian of Portugal died, the throne passed to his uncle, Henry of Portugal Link Information: Sebastian ( ; 20 January 1554 – 4 August 1578) was King of Portugal from 11 June 1557 to 4 August 1578 Question: How did the reign of the king prior to Henry of Portugal last?
[EX A]:
Answer: 21