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: A 71-year-old man presented with severe pancytopenia without any immature cells and with a medullar study suggestive of severe aplastic anemia. What would be the fundamental therapeutic approach? 
 Options:  <0> Treatment with methylprednisolone at a dose of 1 g / Kg / day for 5 days. <1> Study of siblings and if any is HLA compatible, allogeneic transplant of hemopoietic progenitors. <2> Immunosuppressive therapy with cyclosporine and antitimocitic immunoglobulin. <3> Hemotherapeutic support. <4> Chemotherapy and if autologous transplant response of hemopoietic progenitors.

Output: medicine


Input: Consider Input: Question: The reaction conditions for the preparation of 2-methyl-2-methoxypropan-1-ol from 2,2-dimethyloxirane are: 
 Options:  <0> Methanol in acid medium. <1> Lithium aluminum hydride in methanol. <2> Methylmagnesium bromide and subsequent hydrolysis. <3> Sodium methoxide in methanol. <4> Triphenylphosphine in methanol.

Output: chemistry


Input: Consider Input: Question: The cellulose acetate filter membranes are compatible with: 
 Options:  <0> Organic solvents. <1> Aqueous solutions <2> All solvents <3> Organic solvents, except nitrogen. <4> Nitrogen solvents.


Output: pharmacology