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: "What If... is a 2010 drama film that stars an actork best known as Cliff Clavin in what?" whose answer is Cheers.
Each document should contain about 30 words, and these documents should contain useful information.

Query: best known actor as Cliff Clavin
Useful Output:

Doc 1: It's John Ratzenberger. You might not recognize his name, but you'd likely recognize the character he played on the hit series Cheers, Cliff
Doc 2: American actor best known for his role as Cliff Clavin on the iconic  known for his role as Cliff Clavin on the iconic | Instagram
Doc 3: Clips of John Ratzenberger playing Cliff Clavin in Cheers Featuring Sam Malone, Carla Tortelli, Cliff Clavin, Norm Peterson, Frasier Crane
Doc 4: Though he may be best known for his role as Cliff Clavin on the TV show “Cheers” or his voice work in every Disney Pixar movie, he's also a
Doc 5: John Ratzenberger — the actor best known for playing the affable mailman Cliff Clavin on Cheers — was enlisted to record a Cameo video