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The founding father of Preimplantation Genetic Diagnosis ( PGD ) and embryo analysis prior to in-vitro fertilization ( IVF ) , Verlinsky used his polar body biopsy technique to detect potential birth defects in offspring .
 person: Verlinsky
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: Verlinsky 
Answer:
 person: Verlinsky