Describir: Elasticity and plasticity :

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