instruction:
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'.
question:
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?
answer:
Answer: 41

question:
Context: Bush and Yeltsin met in February 1992, declaring a new era of "friendship and partnership". Link Information: none Question: What was the GDP of Russia the year Bush and Yeltsin met and declared a new era of "friendship and partnership"?
answer:
Answer: none

question:
Context: James was the son of Henry Lewis James, who was Dean of Bangor from 1934 to 1940. Link Information: none Question: Who succeeded Robert James' father as the dean of Bangor?
answer:
Answer: none