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'.

Context: Sætren was a counsellor for industrialist Sam Eyde, the founder and first mangager of Norsk Hydro, Link Information:  the company was founded on December 2, 1905 Question: In what year did the industrialist that Sætren worked for found the company that he also managed?
Answer: 1905 

Context: Before the start of the 1974–75 season they traded future Hall of Famer Nate Thurmond to the Chicago Bulls Link Information: Thurmond was drafted by the San Francisco Warriors Question: How many NBA teams did the man play for who the Warriors traded to the Bulls?
Answer: 3

Context: USS Castle Rock (AVP-35) was a United States Navy Barnegat-class small seaplane tender in commission from 1944 to 1946 which saw service in the late months of World War II. Link Information: none Question: How long did the construction of the USS Castle Rock take?

Answer: none