Task: Text Matching
Input (English): Sentence1: I am experiencing  headache (better by: rest, nsaids (ibuprofen, naproxen, etc.)) (time frame: gradual onset) (side: left, right) (occurred: < 1 hr... 
 Sentence2: I have been experiencing headache on both sides, that started gradually and got worse. It gets better on taking rest and when I take ibuprofen, naproxen. It has been disturbing my daily routine and I am not able to concentrate. What could be the cause?
Output (English): Similar