1318
RESULTS : Response rates did not significantly differ between olanzapine ( 43 . 7 % , 95 % CI = 28 . 8 % - 58 . 6 % ) and risperidone ( 54 . 3 % , 95 % CI = 39 . 9 % - 68 . 7 % ) .
 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: olanzapine; Chemical: risperidone