instruction:
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.
question:
Sentence1: Just saw marble size black lump in bm. Thought possibly just food so poked at it w/latex glove. Def not food, it's poo. Red blood lately too. Already did ibd workup (neg). Temp 99.5 for a month. Er? 
 Sentence2: I have a hemorrhoid and frequently get blood in stools, how can I keep it in check?
answer:
Dissimilar


question:
Sentence1: Is it safe to take a probiotic while breastfeeding? 
 Sentence2: I have some diarrhea but I am breatsfeeding my 6 month old, so I want to avoid any antibiotics, but are probiotics safe?
answer:
Similar


question:
Sentence1: Arthritis in the knees. What could be the best way to get relief? 
 Sentence2: I have sustained injury to the knees. Is there anything I can do to help with the pain?
answer:

Dissimilar