9343
Some specialized yeasts , e.g. , " Candida tropicale " , " Pichia " sp. , " Rhodotorula " sp. , can use alkanes as a source of carbon or energy .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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