RoyalFemale and RoyalFemail Domains FOR SALE

RoyalMail is one of the best-known business names in Britain, if not the world.
On every highstreet there is a RoyalMail Post Office and wherever you drive you see RoyalMail vehicles.
But the name RoyalMail could be viewed as quite sexist and so these domain names open up RoyalFemail and even RoyalFemale as brands.
They are for sale, individually or as a set - any reasonable price accepted.
So what could they be used for ... ?