22660
is distributed in Southeast Asia and also used as herbal medicine for the treatment of various diseases such as burning sensations , leprosy , dysentery , osteoarthritis and rheumatoid arthritis ( RA ) .
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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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