Text this: Two-echelon vehicle routing problem for post-disaster aid

 _    _      ___     _    _      ___              
| \  / ||   / _ \\  | || | ||   / _ \\    ____    
|  \/  ||  / //\ \\ | || | ||  | / \ ||  |    \\  
| .  . || |  ___  ||| \\_/ ||  | \_/ ||  | [] ||  
|_|\/|_|| |_||  |_|| \____//    \___//   |  __//  
`-`  `-`  `-`   `-`   `---`     `---`    |_|`-`   
                                         `-`