Task: Text Matching
Input (English): 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?
Output (English): Dissimilar