12257
The role of Eucalyptus citriodora L . leaf extract was studied on the transgenic Drosophila model of flies expressing normal human alpha synuclein ( h - alpha S ) in the neurons .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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