Harmony values that have special characters?

Not sure if it would work anyway, but openhab is unhappen when I pull out of the json for my Denon receiver, values that have special characters in them. So things like:

DolbyPLII/PliixCine

Which I set as:

Switch item=UtilityRoomDenonReceiver_ButtonPress label="" icon="" mappings=[DolbyPLII/PliixCine=‘DolbyPLII/PliixCine’]

Is this as simple as putting single quotes around the group or would that command even function? Wasn’t sure if I should just blindly accept it as valid or what. There are others also like:

RefOffset(15db)=‘RefOffset(15db)’

Thanks.

JR