2524
` ` The U . S . government has done what it is going to do : it has opened up the process to international companies .
 The U . S . government, U . S, it, it, international companies
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 The U . S . government, U . S, it, it, international companies