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.

Example Input: Question: The analysis by potentiometric redisolution is characterized: 
 Options:  <0> By using the square wave as an element of excitation. <1> Because the redisolution stage is carried out without agitation. <2> Because the reoxidation step is carried out by an oxidizing agent. <3> Because currents are measured in the redisolution stage. <4> Because the redisolution is carried out at constant potential.
Example Output: chemistry

Example Input: Question: Glutathione fulfills everything that follows except: 
 Options:  <0> It is a dipeptide. <1> Eliminates peroxides and free radicals. <2> Participates in the detoxification of compounds. <3> Acts as a cofactor of some enzymes. <4> Protects against oxidative stress.
Example Output: chemistry

Example Input: Question: In economic evaluations, which of the following costs correspond to indirect non-health costs? 
 Options:  <0> Hospitalization of the patient. <1> Care at the patient's home. <2> Loss of patient productivity. <3> Travel expenses of the patient. <4> Rehabilitation of the patient.
Example Output:
medicine