4695
Prince William and Kate Middleton 's royal tour of Canada and the US : interactive map http://tgr.ph/kwpFwb
 Prince William, Kate Middleton, Canada, US
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Prince William, Kate Middleton, Canada, US