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 near infrared is the area of ​​the electromagnetic spectrum comprised between: 
 Options:  <0> 100-250 nm. <1> 200-450 nm. <2> 600-750 nm. <3> 800-2500 nm. <4> 3000-8000 nm.
Example Output: chemistry

Example Input: Question: In an evaluation the redox indicator In (ox) + ne-  In (network) is used, whose normal potential is E0. The color change will occur: 
 Options:  <0> To the potential of the equivalence point. <1> To the value of E0. <2> In the interval E0  0.059 / n. <3> In the interval E0 (ox) - E0 (network) if it is evaluated with a reducer. <4> At the potential of 0.059 / n.
Example Output: chemistry

Example Input: Question: A group of researchers conducted a prospective study to evaluate the efficacy of three alternatives in the treatment of acute otorrhea in children with tympanostomy tubes. Randomized, 76 children received oral amoxicillin-clavulanic acid, 77 received ear drops with hydrocortisone-bacitracinacolistin and other 77 children did not receive any pharmacological treatment, only observation. The main variable was the presence of otorrhea. What kind of study is it? 
 Options:  <0> Cohort study. <1> Post-authorization study of prospective follow-up. <2> Post-authorization study linked to the authorization. <3> Clinical trial <4> Transversal study.
Example Output:
medicine