You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "when does ben stone leave law and order?" whose answer is the end of season four.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Ben Stone Law and Order departure
Useful Output:

Doc 1: In the series: No, he's not. However Michael Moriarty, the actor who played Stone, had an acrimonious departure from the series that made casting him in future
Doc 2: Stone's departure essentially takes place in two episodes, actually. The first one is my all time favorite, Sanctuary (S4E19). It's an episode
Doc 3: Pardon me if I don't get all teary eyed over Ben Stone's departure after he got Allison Janney murdered. Plus, that bastard prosecuted Lisa
Doc 4: Actor Moriarty's departure from Law and Order is believed to be down to his very public opposition to the then-real-life Attorney General Janet Reno.
Doc 5: The reason Michael Moriarty (Ben Stone) left L&O was bc of a dispute he had with Janet Reno, USAG at the time. She was in favor of limiting