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Ilbiidae is a family of marine opisthobranch gastropod mollusk s in the clade Cephalaspidea ( according to the taxonomy of the Gastropoda by Bouchet & Rocroi , 2005 ) .
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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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