11537
" Semicassis pyrum " , common name the " pear bonnet " or " common helmet " , is a species of large sea snail , a marine gastropod mollusc in the family Cassidae , the helmet shells , bonnet shells and their allies .
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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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