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Padmanabha Krishnagopala Iyengar ( 29 June 1931 – 21 December 2011 ) was an eminent India n nuclear physicist .
 person: Iyengar; location: India
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: Iyengar, India 
Answer:
 person: Iyengar; location: India