Perl6 Unicode support

[ag0aep6g via Digitalmars-d-announce]

On 06/12/2016 05:16 AM, Andrew Godfrey wrote:
> Eg it says ".chars returns the number of characters (aka graphemes)"
>
> Does this count the number of graphemes, or the number of grapheme
> clusters? Later on with \r\n it pretty much says that it counts grapheme
> clusters. Here it says it counts graphemes.

Sorry, I still don't get it. Can you give an example string where 
counting graphemes gives a different result from counting grapheme clusters?