53893
Same-sex marriage is legal nationwide in eleven countries : the Netherlands , Belgium , Spain , Canada , South Africa , Norway , Sweden , Portugal , Iceland , Argentina and Denmark .
 Netherlands, Belgium, Spain, Canada, South Africa, Norway, Sweden, Portugal, Iceland, Argentina, Denmark
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Netherlands, Belgium, Spain, Canada, South Africa, Norway, Sweden, Portugal, Iceland, Argentina, Denmark