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CONCLUSIONS : Clinical outcomes with risperidone were equal to those with olanzapine , and response may be more stable .
 Chemical: risperidone; 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: risperidone; Chemical: olanzapine