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The essential oil of 46 spontaneous plants of Calamintha nepeta ( L . ) Savi subsp . nepeta growing wild in Sud , Italy ( Salento , Apulia ) , were investigated by GC / MS .
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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:
 None