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  ______   _    _    __   __   __   __   _    _   
 /_   _// | || | ||  \ \\/ //  \ \\/ // | \  / || 
 `-| |,-  | || | ||   \   //    \ ` //  |  \/  || 
   | ||   | \\_/ ||   / . \\     | ||   | .  . || 
   |_||    \____//   /_//\_\\    |_||   |_|\/|_|| 
   `-`'     `---`    `-`  --`    `-`'   `-`  `-`

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Text this: The graph relabeling problem and its variants