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Manila North Tollways Corporation , based in Caloocan City , Metropolitan Manila , the Philippines , is the builder and concessionaire of the North Luzon Expressway .
 Manila, Tollways Corporation, Caloocan City, Metropolitan Manila, Philippines
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Manila, Tollways Corporation, Caloocan City, Metropolitan Manila, Philippines