發送短信 : Hierarchical document representation for summarization

  _____      ___      _  _    __   __   __   __  
 / ____||   / _ \\   | \| ||  \ \\/ //  \ \\/ // 
/ //---`'  | / \ ||  |  ' ||   \ ` //    \   //  
\ \\___    | \_/ ||  | .  ||    | ||     / . \\  
 \_____||   \___//   |_|\_||    |_||    /_//\_\\ 
  `----`    `---`    `-` -`     `-`'    `-`  --`