Describir: A taxonomy of office chairs :

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