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: alongside fellow Marine Corps lawyer Lieutenant Colonel Sarah "Mac" MacKenzie (Catherine Bell), a squared away officer with a dysfunctional past. This season, Mac waits anxiously for news of Harm, Link Information: Sarah "Mac" MacKenzie is a fictional character and lead role in the American television series JAG, played by Catherine Bell. The character was created by Donald P. Bellisario, as a work for hire for Paramount Television, in the script for the first episode of the second season, which was filmed and then aired by CBS on January 3, 1997. Question: How many seasons did Sarah MacKenzie appear on JAG?
Output:
Answer: 9