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In another session , tropicamide ( 20 microL , 0 . 01 % ) was administered to both eyes , followed 23 minutes later by the application of pilocarpine ( 20 microL , 0 . 1 % ) to one eye and placebo to the other .
 Chemical: tropicamide; Chemical: pilocarpine
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: tropicamide; Chemical: pilocarpine