1898
Yabloko and another liberal faction , the Union of Right Forces , said they might appeal Friday ' s vote in the Constitutional Court .
 Yabloko, another liberal faction, the Union of Right Forces, they, the Constitutional Court
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:
 Yabloko, another liberal faction, the Union of Right Forces, they, the Constitutional Court