Definition: In this task, You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.
Input: I purchased this iphone flash drive off-load files for backup,and to free up space when necessary.It offer me plenty of storage,the app is easy to download and use,and so easy to add delete and store files Movies pictures Data etc.
Output:
positive