1319
Among those responding to treatment , more subjects in the olanzapine group ( 40 . 9 % , 95 % CI = 16 . 8 % - 65 . 0 % ) than in the risperidone group ( 18 . 9 % , 95 % CI = 0 % - 39 . 2 % ) had subsequent ratings not meeting response criteria .
 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