272501
Davaineidae is the name of a family of tapeworms that includes helminth parasites of vertebrate s. There are 14 genus recorded under this family , of which Raillietina is the best understood and most extensively studied .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
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