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.
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Question: Question: Point out which of the following is more clearly a positive symptom of schizophrenia:
Options: <0> The flat or dull affection. <1> The poverty of language. <2> The associability. <3> Hallucinations <4> The bulimia.

Answer: psychology

Question: Question: For the analysis of traces of inorganic constituents, in samples of organic nature, a preliminary treatment of the sample is needed, which normally consists of:
Options: <0> Dissolve the sample in cold water. <1> Dissolve the sample in hot water. <2> Dissolve the sample between 30 and 70 C. <3> Heat the sample between 400 and 700 C. <4> Heat the sample in 0.1 M hydrochloric acid.

Answer: chemistry

Question: Question: Within head and neck carcinomas, what type of tumor is most obviously related to the human papillomavirus?
Options: <0> Squamous cell carcinoma of the larynx. <1> Squamous cell carcinoma of the oropharynx. <2> Squamous cell carcinoma of the hypopharynx. <3> Adenocarcinoma sinonasal. <4> Undifferentiated carcinoma of cavum.

Answer:
medicine