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Singapore authorities extended the use of its state - of - the - art thermal imaging scanner to fight the deadly SARS virus by placing units at its border with Malaysia .
 Singapore, its, its, Malaysia, Singapore authorities, its border with Malaysia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 Singapore, its, its, Malaysia, Singapore authorities, its border with Malaysia