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The chloroform extracts of aerial and root parts of G . sylvestre exhibited higher antimicrobial activity as compared to diethyl ether and acetone .
 Chemical: chloroform; Chemical: diethyl ether; Chemical: acetone
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: chloroform, diethyl ether, acetone 
Answer:
 Chemical: chloroform; Chemical: diethyl ether; Chemical: acetone