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: She appeared as Brangäne in Wagner's Tristan und Isolde, as Fricka in his Die Walküre, as Ortrud in his Lohengrin, Link Information: t was composed between 1857 and 1859  Question: Which of Wagner's operas that Cavelti starred in was written first?
[EX A]: Answer:  Lohengrin,

[EX Q]: Context: He commanded the U.S. forces in the Battle of Tirad Pass, 2 December 1899, where General Gregorio del Pilar was killed Link Information: He was promoted to brigadier-general after this event. Question: How long had Gregorio del Pilar been a General for when he was killed?
[EX A]: Answer: 1 

[EX Q]: Context: The Chargers responded with kicker Nate Kaeding getting a 36-yard field goal, along with QB Philip Rivers Link Information: Nathaniel James Kaeding (born March 26, 1982 Question: What is the age difference between the kicker and the quarterback for the Chargers?
[EX A]:
Answer: 1