Navigatie shell with relative path (cd)

In this kata you will write a function that takes two absolute paths

• The Present working directory (String) and
• The destination directory (String)

 The function has to return the one time navigation relative path
 that must be passed to the 'cd' command to navigate to the
 specified destination.

for example:

javascript: Relativity('/root/map/lagos','/root/map/dubai')

returns

"../../dubai"

Note: This kata requires the knowledge of shell navigation

and relative/absolute path specification