In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

Input: Consider Input: Question: The reactions in which the kinetics does not depend on the nucleophilic concentration, are reactions: 
 Options:  <0> Radicals <1> SN1. <2> Pericyclic. <3> SN2. <4> None of the above.

Output: chemistry


Input: Consider Input: Question: Jaundice (yellowing of the skin and mucous membranes due to increased levels of bilirubin) may be of cholestatic origin (pathway obstruction) or hepatocellular damage. Indicate the correct answer: 
 Options:  <0> In cholestatic jaundice we observed: persistent alanine aminotransferase (ALT) increase without elevation of gamma glutamyltransferase (GGT). <1> In hepatocellular jaundice there is a slight increase in GGT (<5 times the upper limit of reference) and a large increase in ALT (> 10 times the upper limit of reference). <2> In cholestatic jaundice, a decrease in direct bilirubin and prothrombin time is observed. <3> In hepatocellular jaundice, a decrease in alkaline phosphatase and activated partial thromboplastin time is observed. <4> In both jaundices we can observe a clear decrease in aspartate aminotransferase (AST).

Output: pharmacology


Input: Consider Input: Question: It is associated with gastric ulcers and cancers: 
 Options:  <0> Clostridium botulinum. <1> Yersinia enterocolitica. <2> Salmonella enterica <3> Helicobacter pylori. <4> Shigella sonnei.


Output: biology