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There are four types of lingual papillae in humans : circumvallate papilla e ( vallate papillae ) , fungiform papilla e , filiform papilla e and foliate papilla e. All except the filiform papillae are associated with taste bud s. In some diseases , there can be depapillation of the tongue , where the lingual papillae are lost , leaving a smooth , red and possibly sore area .
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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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