SEO Links

  
I have a challenge with consistently supressing an espace name when creating SEO friendly links, let's call it "espace1" which I want to supress the name of.
 
"www.abc.com" will appropriately serve up "espace1" as there is a site rule in place and the user sees "www.abc.com" in the browser.
 
Navigating to a second espace in the application via a link on screen will appropriately serve up "www.abc.com/espace2/somepage".
 
Then clicking a link from "espace2" back to "espace1" will result in "www.abc.com/espace1/anotherpage" but the desired behaviour is for the user to see "www.abc.com/anotherpage" in the browser with same content. 
 
Any suggestions on how this can be achieved?