4552
Well , I think they want to try and iron out any potential difficulties before the heads of state come into town on Saturday and Sunday .
 they, I, the heads of state
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:
 they, I, the heads of state