6580
Recently , an essential oil of selected quality produced from the flowering tops of Lavandula angustifolia Mill . by steam distillation ( Silexan ) has been approved in Germany for the treatment of restlessness in case of anxious mood .
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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