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Curculigo orchioides is used for the treatment of impotence , limb limpness , arthritis of the lumbar and knee joints , and watery diarrhea in traditional Chinese medicine , and also used as a potent immunomodulator and aphrodisiac in the Ayurvedic medical system .
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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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