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            _____     _  _      ___     ______   
  ____     |  ___||  | \| ||   / _ \\  |      \\ 
 |    \\   | ||__    |  ' ||  | / \ || |  --  // 
 | [] ||   | ||__    | .  ||  | \_/ || |  --  \\ 
 |  __//   |_____||  |_|\_||   \___//  |______// 
 |_|`-`    `-----`   `-` -`    `---`   `------`  
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Text this: On 2-extendable abelian Cayley graphs