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.

Ex Input:
Question: Which of the following molecules has the highest dipole moment ?:
Options: <0> HCI. <1> NH3. <2> HF. <3> CO2 <4> Trans-CHCI = CHCI.

Ex Output:
pharmacology

Ex Input:
Question: Among the partial reactions that lead to sodium carbonate by the Solvay Process, are:
Options: <0> The reaction between calcium carbonate and sodium chloride. <1> The precipitation of sodium hydrogen carbonate. <2> The thermal decomposition of ammonium chloride. <3> The formation of CaCO3 from CaO and CO2. <4> The reaction of ammonia with calcium oxide.

Ex Output:
chemistry

Ex Input:
Question: In suppression ion chromatography:
Options: <0> A single column is used and the conductivity of the mobile phase is kept very low. <1> The eluent must be able to be removed selectively after separation and prior to the conductometric measurement. <2> The eluent incorporates a regenerating solution of strong acid flowing in the same direction as the mobile phase. <3> Weak exchangers are used from polystyrene polymers. <4> A mobile phase with ionic conductivity gradient is used.

Ex Output:
chemistry