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: Osmium oxide (VIII), OsO4: 
 Options:  <0> It is a compound in a state of oxidation very common among transition metals. <1> It is the only binary compound of osmium with oxygen. <2> It has the structure of rhenium trioxide. <3> It is inert compared to alkaline hydroxides. <4> It is used as an oxidant in organic chemistry.

Output: chemistry


Input: Consider Input: Question: The system of norms and sanctions that is established in a mandatory way for professionals based on professional ethics behaviors, is called: 
 Options:  <0> Professional bioethics <1> Practical ethics <2> Professional deontology. <3> Professional rights <4> Hierarchical moral code.

Output: nursery


Input: Consider Input: Question: The formation of the complex called Aminophylline improves the solubility of one of the following drugs: 
 Options:  <0> Theophylline <1> Digoxin <2> Ampicillin <3> Thioridazine. <4> Ciclosporin


Output: pharmacology