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

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Text this: CERTAIN 2-MANIFOLD IN E4