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Semaphorin 7A ( Sema7A ) is a membrane - linked semaphorin that is expressed by human keratinocytes , and we have shown that Sema7A binds to human melanocytes through beta1 - integrins and the Plexin C1 receptor .
 Anatomy: membrane; Anatomy: keratinocytes; Anatomy: melanocytes
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities: membrane, keratinocytes, melanocytes 
Answer:
 Anatomy: membrane; Anatomy: keratinocytes; Anatomy: melanocytes