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` ` From a small election in one state Senate race comes a lot , ' ' said Bob Stein , professor of political science at Rice University in Houston .
 state, Houston, state Senate, Rice University in Houston, Bob Stein, professor of political science at Rice University in Houston
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:
 state, Houston, state Senate, Rice University in Houston, Bob Stein, professor of political science at Rice University in Houston