949
RESULTS : The mean + / - SD duration of treatment with the identified atypical antipsychotic agent was 68 . 3 + / - 28 . 9 months ( clozapine ) , 29 . 5 + / - 17 . 5 months ( olanzapine ) , and 40 . 9 + / - 33 . 7 ( risperidone ) .
 Chemical: clozapine; Chemical: olanzapine; Chemical: risperidone
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: clozapine; Chemical: olanzapine; Chemical: risperidone