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: In accounting, which of the following elements should be included in the LIABILITIES of an estate?
Options: <0> Credits in favor of third parties. <1> Quantities that customers owe. <2> Money in banks. <3> Money in credit institutions. <4> The store.
Example Output: pharmacology

Example Input: Question: Inhibin:
Options: <0> Inhibits the secretion of FSH. <1> Blocks the secretion of estrogen. <2> Stimulates the secretion of GnRH. <3> The adenohypophysis produces it. <4> Stimulates the secretion of LH.
Example Output: biology

Example Input: Question: What values obtained in an arterial blood gas are considered within the normal parameters in an adult person ?:
Options: <0> PaCO2 65mmHg, PaO2 80mmHg, pH 7.55. <1> PaCO2 35mmHg, PaO2 110mmHg, pH 7.55. <2> PaCO2 35mmHg, PaO2 90mmHg, pH 7.35. <3> PaCO2 80mmHg, PaO2 35mmHg, pH 7.35. <4> PaCO2 20mmHg, PaO2 90mmHg, pH 7.45.
Example Output:
nursery