21515
For the OZ277 series , the trioxane isostere had the best ADME profile , but its overall antimalarial efficacy was not superior to that of the trioxolane or tetraoxane isosteres .
 Chemical: OZ277; Chemical: trioxane; Chemical: trioxolane; Chemical: tetraoxane
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: OZ277, trioxane, trioxolane, tetraoxane 
Answer:
 Chemical: OZ277; Chemical: trioxane; Chemical: trioxolane; Chemical: tetraoxane