1518
EDITOR ' S NOTE _ Lawrence L . Knutson has covered the White House , Congress and Washington ' s history for more than 30 years .
 Washington, the White House, Congress, Lawrence L . Knutson
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:
 Washington, the White House, Congress, Lawrence L . Knutson