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Nitroimidazolyl hydrazones are better amoebicides than their cyclized 1 , 3 , 4 - oxadiazoline analogues : In vitro studies and Lipophilic efficiency analysis .
 Chemical: Nitroimidazolyl hydrazones; Chemical: 1 , 3 , 4 - oxadiazoline
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Nitroimidazolyl hydrazones; Chemical: 1 , 3 , 4 - oxadiazoline