4670
" Staphylococcus aureus " is a Gram-positive , round-shaped bacterium that is a member of the Firmicutes , and it is a usual member of the microbiota of the body , frequently found in the upper respiratory tract and on the skin .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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