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Behaviorally , adult PRS mice showed hyperactivity and deficits in social interaction , prepulse inhibition , and fear conditioning that were corrected by administration of valproic acid ( a histone deacetylase inhibitor ) or clozapine ( an atypical antipsychotic with DNA - demethylation activity ) .
 Chemical: valproic acid; Chemical: clozapine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: valproic acid; Chemical: clozapine