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Dinah Shore , Dean Martin , Joan Collins , Marilyn Monroe , and Harold Robbins each owned an " Alexander . "
 Dinah Shore, Dean Martin, Joan Collins, Marilyn Monroe, Harold Robbins, Alexander
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Dinah Shore, Dean Martin, Joan Collins, Marilyn Monroe, Harold Robbins, Alexander