Task: Text Matching
Input (English): Sentence1: One week ago tonight I threw up several times, no diarrhea or stomach cramps. Slept for the rest of the next day. Still no energy!!! Appetite is back. 
 Sentence2: I started using a new medication called Zofran. After using this, I feel like I have no energy and have thrown up a few times too. Can this medication cause these side effects?
Output (English): Dissimilar