543
The tour began on 11 July 2009 at the Halifax Common public parkland , in Halifax , Nova Scotia , Canada , and closed at Cowboys Stadium in Arlington , Texas on 19 August 2009 .
 Halifax, Halifax, Nova Scotia, Canada, Arlington , Texas
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Halifax, Halifax, Nova Scotia, Canada, Arlington , Texas