In this task you are given a medical question pair hand-generated. Your task is to classify a given post into two categories 1) 'Similar' if the given two questions have a same connotation 2) 'Dissimilar' if the given two questions have a different connotation or meaning.

Sentence1: Should I use a cream of benzoyl peroxide or a soap? 
 Sentence2: I have tried benzoyl peroxide and antibacterial soap for my acne, but nothing helped. Is there anything else that I can try at home to get rid of the acne?
Dissimilar

Sentence1: Can gabapentin work for headaches caused by trimethoprim. I have started taking 100mg gabapentin daily for 4 days and trimethoprim 200mg twice a day. 
 Sentence2: I was diagnosed with a urine infection for which I was given Trimethoprim 200 mg to be taken twie daily. I have developed headaches because of the medication. Would it be safe to take Gabapentin?
Similar

Sentence1: Late menstrual period after bad carwreck? 
 Sentence2: Missed my period. Is this car accident the cause?

Similar