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 INR (international normalized ratio) of a patient with chronic atrial fibrillation treated with Acenocoumarol is 4. This result indicates that: 
 Options:  <0> The appearance of ventricular arrhythmias should be controlled. <1> The patient is correctly anticoagulated. <2> Anticoagulation with heparin is more indicated. <3> There is a risk of thrombus formation. <4> Signs of bleeding should be assessed.

Output: nursery


Input: Consider Input: Question: By means of the angular methods used to evaluate the flow properties of a powder, it is determined: 
 Options:  <0> The ease with which the solid sets in motion. <1> The angle of repose. <2> The flow velocity <3> The resistance to displacement. <4> The density of the powder.

Output: pharmacology


Input: Consider Input: Question: Calcium fluoride is a white solid that is found as such in nature (fluorspar or fluorite, which can occur in many colors) and is used as an important source of fluoride. Among its physical and chemical properties include: 
 Options:  <0> Its solubility in water, which differentiates it from the other group 2 fluorides. <1> Its resistance to concentrated sulfuric acid. <2> Its hydrolysis in water, which transforms it into CaO and HF. <3> Its relatively low melting point for a mineral. <4> Its favorable, although slow, oxidation to the air.


Output: chemistry