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: Sampson had just become eligible to be a college coach again after receiving a five-year show cause penalty in 2008 for sanctions against him during his time as Indiana head coach. Link Information: He was the head coach at Montana Tech from 1981 to 1985, Washington State University from 1987 to 1994, the University of Oklahoma from 1994 to 2006, and Indiana University 2006 to 2008. Question: How long had Kelvin Sampson serve as the head coach of Indiana before his sanctions?
A:
Answer: 2