11587
In this study , biological activities of methanolic extracts from Artemisia herba - alba , Ruta chalpensis L . and Peganum harmala L . plants , collected in Centre of Tunisia , were investigated .
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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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