< ? x m l   v e r s i o n = " 1 . 0 "   e n c o d i n g = " u t f - 8 "   ? > 
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 < S e c u r i t y   d e s c r i p t i o n = " B o   M t "   t a g   =   " H e a d i n g "   e x p a n d   = " T r u e " > 
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 	 < C M D   c m d = " O D "   d e s c r i p t i o n   = " n h   n g h )a   t h a o   t  c   v i  n "   t a g   = " p b s . S e c u r i t y . P S . O D "   / > 
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 	 < C M D   c m d = " O G "   d e s c r i p t i o n   = " N h  m   t h a o   t  c   v i  n "   t a g   = " p b s . S e c u r i t y . P S . O G "   / > 
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 	 < C M D   c m d = " O P "   d e s c r i p t i o n   = " P h  n   q u y n "   t a g   = " p b s . S e c u r i t y . P S . O P " / > 
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 	 < C M D   c m d = " D A "   d e s c r i p t i o n   = " N h  m   t r u y   c p "   t a g   = " p b s . S e c u r i t y . P S . D A " / > 
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