Instructions: 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'.
Input: Context: However, Winters' contractual obligation to the HBO series Oz forced him to leave halfway through the season. Link Information: Oz premiered on July 12, 1997 and ran for six seasons Question: How many season did the HBO show that forced Dean Winters to leave Law & Order last?
Output:
Answer: six