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: Examples of illustrated hand scrolls include novels such as Genji Monogatari Emaki, historical writings like The Tale of Great Minister Ban Link Information: both the identity of the illustrator and the organisation of its production remain unknown. Question: Who was the author of the Genji Monogatari Emaki?
[A]: Answer: unknown


[Q]: Context: Watson graduated in 1943 with BS in electrical engineering from Iowa State College. Link Information: none Question: Which fo the universities Watson attended has the highest student enrollment?
[A]: Answer: none


[Q]: Context: Rudy Vallee was the first artist to make the charts in Billboard magazine with "As Time Goes By" when he took the song to number 15 in 1931 Link Information: Hubert Prior "Rudy" Vallée (July 28, 1901 – July 3, 1986)  Question: How old was Rudy Vallee when he reached number 15 on the Billboard charts?
[A]:
Answer: 30