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When announcing the nomination , Harper stated that Cromwell would not be appointed to the bench until he had answered questions from an ad hoc all-party committee of the House of Commons .
 person: Harper; person: Cromwell
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: Harper, Cromwell 
Answer:
 person: Harper; person: Cromwell