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He was considered the front runner in the 2012 Republican gubernatorial primary , but instead decided to run for re-election as Lt. Governor after St. Louis businessman and multimillionaire Dave Spence unexpectedly declared to run for Governor and pledged to put much of his own money into the race .
 Republican, St. Louis, Dave Spence
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Republican, St. Louis, Dave Spence