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now , this , of course , is part of their tactic to try to regain control of the house and senate in 2002 and 2004 .
 their, house, senate
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 their, house, senate