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

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Text this: Crystallographic flat origami with three flat foldability types of the generating unit