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The separation effect was examined by gas chromatography for the whole essential oil and the inclusion compound , showing that the inclusion crystalline method is simple , rapid and effective for the separation of patchouli alcohol from the essential oil of C . potchouli Herb .
 Chemical: patchouli alcohol
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: patchouli alcohol