Sorry Joyce and Tammy. I goofed up in the original recommendation.
I believe it should be something like:
Object Name cr
Alias Name group_location_name
Alias Value group.location.name
Basically we need to pull the Name of location which is a character. Just location as I suggested previously is a UUID and thats probably why the error you obtained.
Not sure what happened to my email reply to this that was sent last evening though.
_R