Task: Sentiment Analysis
Input (English): Review: A friend suggested this herb to me to help with my awful PMS. After taking Vitex for only three days during PMS, I began to feel horrible: very irritable, nauseous and foggy. After doing some research, I found that a percentage of women react very negatively to this herb -- some people remarked that they initially felt better, but then progressively felt worse and thought they were going crazy; some said they immediately felt terrible. I guess it's a gamble that many of us are willing to take to feel better though. Wish it had worked! 
 Polarity: Negative
Output (English): True