The bulk update request #11927 has been approved by @evazion.
create alias side-tie_bikini -> side-tie_bikini_bottom
create alias front-tie_bikini -> front-tie_bikini_top
Currently there's no way to search (or have tags for) side-tie bikini tops. Do front-tie bikini bottoms even exist? Maybe with o-rings/multi-straps? Good luck finding out right now with the state of these tags!