Instruct: Classify the given Amazon review into its appropriate rating category
Query: A Good Sci- Fi Book

THIS BOOK WAS AN EASY READ. IT DID NOT CONTAIN DIFFICULT TERMINOLOGY OR CONCEPTS THAT WERE TOO IMPROBABLE. IT DID HAVE LOTS OF ACTION. IT DESCRIBED LIVING INA SPACE SHIP IN A BELIEVABLE WAY. I CAN'T WAIT TO THE READ NEXT BOOK.