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: What is the procedure called instrumental conditioning in which the instrumental response eliminates or prevents the occurrence of an aversive stimulus ?: 
 Options:  <0> Positive reinforcement. <1> Punishment. <2> Negative reinforcement. <3> Omission. <4> Extinction.
Example Output: psychology

Example Input: Question: The restriction enzymes hydrolyze bonds: 
 Options:  <0> Phosphodiester <1> Glucosidics <2> Peptides <3> Ionic <4> By hydrogen bridges.
Example Output: chemistry

Example Input: Question: The 80-year-old family of F. G., who has very advanced dementia, wants to request legal incapacitation. It is known that legal incapacitation: 
 Options:  <0> It supposes the negation of the legal capacity of the person. <1> It aims to protect the person from potential abuse. <2> It limits the capacity to act and the legal capacity of the person. <3> It can be decreed by the doctor responsible for the patient. <4> It can not be requested by the patient's relatives.
Example Output:
nursery