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: The reactions in which the kinetics does not depend on the nucleophilic concentration, are reactions:
Options: <0> Radicals <1> SN1. <2> Pericyclic. <3> SN2. <4> None of the above.

Ex Output:
chemistry

Ex Input:
Question: Which glands are located between the skin and the masseter muscle, in front and under the outer ear?
Options: <0> Parotid glands <1> Submandibular glands <2> Sublingual glands <3> Mouth glands <4> Lieberkuhn's glands.

Ex Output:
pharmacology

Ex Input:
Question: The SO2 molecule is:
Options: <0> Linear, with the S atom in the center. <1> Linear, with one of the atoms of O in the center. <2> Angular, with the S atom in the center and with an angle close to 120 (equilateral triangle) and a free pair of electrons. <3> Angular, with one of the atoms of O in the center and with an angle of approximately 120 (equilateral triangle) and a pair of free electrons. <4> Angular, with the S atom in the center and with an angle close to 109 (tetrahedron) and two pairs of free electrons.

Ex Output:
chemistry