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: They are involved in the lytic action of cytotoxic T lymphocytes: 
 Options:  <0> Granzimas <1> Opsonins. <2> Histamines <3> Integrins <4> Cathepsins.
Example Output: biology

Example Input: Question: The DNA Girasa is: 
 Options:  <0> A eukaryotic Topoisomerase I. <1> A eukaryotic Topoisomerase II <2> A prokaryotic Topoisomerase I <3> A prokaryotic Topoisomerase II. <4> A prokaryotic Helicasa.
Example Output: chemistry

Example Input: Question: One of the following statements about the epidemiology and prognosis of heart failure is INCORRECT. Point it out 
 Options:  <0> Between 60 and 70% of patients die in the first 5 years after establishing the diagnosis of heart failure. <1> The functional situation of the patient with heart failure is the one that best correlates with the expectation of survival. <2> Diastolic dysfunction predominates in elderly women with a history of chronic hypertension. <3> Heart failure due to systolic dysfunction is usually observed in male patients with ischemic heart disease. <4> The prevalence of heart failure is decreasing in the last decade thanks to better control of cardiovascular risk factors.
Example Output:
medicine