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

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Text this: Defining dialogues: tracing the evolution of human-machine communication