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 ketone bodies: 
 Options:  <0> They are used by the liver to synthesize fatty acids. <1> They only form in conditions of good nutrition. <2> Its formation is especially active in skeletal muscle. <3> It is formed from acetyl-CoA. <4> They never give acetone.

Output: biology


Input: Consider Input: Question: The chemical reactions of the splicing process of the introns during the maturation of the pre-mRNAs consists of: 
 Options:  <0> An oxidation-reduction reaction. <1> A transesterification reaction. <2> Two sequential transesterification reactions. <3> Three sequential transesterification reactions. <4> A transesterification reaction followed by another oxidation reaction.

Output: chemistry


Input: Consider Input: Question: The first level of heart rate and respiratory control is: 
 Options:  <0> The cerebral cortex <1> Spinal cord. <2> The cerebellum <3> The bulb. <4> The hypothalamus


Output: biology