Teacher:You are given an amazon food product review and its polarity (positive or negative). Your task is to answer "True" if the specified sentence and its polarity match; otherwise, answer "False".
Teacher: Now, understand the problem? Solve this instance: This stuff is great because it's low glycemic. Substitute this to sugar and you'll be doing your body a great favor. This size is economical and shipping is fast, too. I got mine very soon.
Polarity: Positive
Student:
True