Task: Sentiment Analysis
Input (English): I switched my dog to this food and watching him truly enjoy eating and the taste of his food is worth anything.  He has eaten Precise foundation formula for the almost two years since I adopted him.  He often goes off his food and/or vomits from time to time.  I've tried switching him to Wellness and Blue Buffalo with no positive results.  I can't tell you the immediate difference in him from the first time he ate the Newman's...and he looks forward to every meal, doesn't beg for other stuff because he is satisfied, and he seems to have more energy.  He is a 110-lb Great Pyrenees and finally very happy with his food.
Output (English): Positive