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: Beta-adrenergic receptor blocking drugs: 
 Options:  <0> They cause hypotension in individuals with normal blood pressure. <1> They increase the atrio-ventricular conduction velocity. <2> They cause negative inotropism. <3> They provoke a positive chronotropic effect. <4> They increase the secretion of renin.
Example Output: pharmacology

Example Input: Question: Which of the following functions is not typical of the stomach? 
 Options:  <0> Food storage. <1> Protein digestion. <2> Secretion of intrinsic factor. <3> Secretion of hormones <4> Amylase secretion.
Example Output: pharmacology

Example Input: Question: The thermal conductivity detector was one of the first used in gas chromatography and still has a lot of application. Consists in: 
 Options:  <0> A source that is heated by electricity, whose temperature at a constant electrical energy depends on the thermal conductivity of the gas that surrounds it. <1> A metallic surface on which ions collide, producing emission of electrons or other ions, with the consequent variation in conductivity. <2> An air / hydrogen flame where organic compounds are pyrolyzed producing ions that lead to a change in conductivity. <3> An emitter of beta radiation that allows the measurement of the conductivity of the eluent that leaves the chromatographic column. <4> A source of thermal ionization that produces positive and negative ions that change the conductivity of the gas passing through the detector.
Example Output:
chemistry