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 _____      ______    ______     ___              
|  __ \\   /_   _//  /_____//   / _ \\      ___   
| |  \ ||   -| ||-   `____ `   / //\ \\    /   || 
| |__/ ||   _| ||_   /___//   |  ___  ||  | [] || 
|_____//   /_____//  `__ `    |_||  |_||   \__ || 
 -----`    `-----`   /_//     `-`   `-`     -|_|| 
                     `-`                     `-`

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Text this: CERTAIN 2-MANIFOLD IN E4