681
Duncan ' s lawsuit , which sought class - action status , said Northwest violated its duty under Washington state law to provide a safe and healthy working environment .
 Washington, state, Northwest, its, Duncan
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, state, Northwest, its, Duncan