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 reaction of 1H-indole with electrophiles takes place selectively on the atom in position: 
 Options:  <0> one. <1> two. <2> 3. <3> Four. <4> 5.

Output: chemistry


Input: Consider Input: Question: The eggs are operculated: 
 Options:  <0> Hymenolepis nana. <1> Trichinella spiralis. <2> Enterobius vermicularis. <3> Fasciola hepatica. <4> Ascaris lumbricoides.

Output: biology


Input: Consider Input: Question: In the path that leads in the liver to acetoacetate biosynthesis from acetyl CoA, which of the following substances is the immediate precursor of acetoacetate? 
 Options:  <0> 3-Hydroxybutyrate <1> Acetoacetyl CoA. <2> 3-Hydroxybutyrate CoA. <3> Mevalonic acid. <4> 3-Hydroxy-3-methylglutaryl. CoA.


Output: chemistry