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They remained in the competition for seven weeks with variable results ; on October 23 , Ian Waite stood in as her professional partner when Brendan Cole was unable to do so .
 Ian Waite, Brendan Cole
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ian Waite, Brendan Cole