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.

Ex Input:
Question: Among the partial reactions that lead to sodium carbonate by the Solvay Process, are: 
 Options:  <0> The reaction between calcium carbonate and sodium chloride. <1> The precipitation of sodium hydrogen carbonate. <2> The thermal decomposition of ammonium chloride. <3> The formation of CaCO3 from CaO and CO2. <4> The reaction of ammonia with calcium oxide.

Ex Output:
chemistry


Ex Input:
Question: The cells of the stomach that are responsible for the secretion of hydrochloric acid are: 
 Options:  <0> The main cells. <1> The G cells <2> The parietal cells. <3> The enterocytes. <4> The mucosites of surface.

Ex Output:
nursery


Ex Input:
Question: Of the following reaction mechanisms, in which there is an inversion of the configuration from the reactant to the product of the reaction ?: 
 Options:  <0> Bimolecular nucleophilic substitution (SN2). <1> Unimolecular elimination (E1). <2> Unimolecular nucleophilic substitution (SN1). <3> Addition Markovnikov. <4> Addition anti-Markovnikov.

Ex Output:

chemistry