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Olanzapine - treated patients demonstrated a higher rate of response ( 65 % vs 43 % , respectively ; P = . 02 ) and euthymia ( 61 % vs 36 % , respectively ; P = . 01 ) than placebo - treated patients .
 Chemical: Olanzapine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: Olanzapine