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#MH370: B 777 - 2 H 6 ( ER ) , 9 M-MRO #MH17: B 777 - 2 H 6 ( ER ) , 9 M-MRD ( the blue plane , once was world 's most beautiful airplane ) http://t.co/JV7W4A7XQX
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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