338643
This character differed from the original Boomer in several important ways : she was female ; " Boomer " was only her military call sign and not her actual name ; and she was revealed to be a humanoid Cylon sleeper agent , one of many copies of the Cylon model known as Number Eight .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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