Strapless bottom

Is there a better way to distinguish the following three tags?

strapless_bottom
crotch_plate
c-string

Going by the wiki pages, c-string could implicate bikini_bottom or thong_bikini. Crotch_plate seems like it would implicate armor. Or would strapless_bottom encompass both crotch_plate and c-string?

Crotch plate doesn't appear to have the same restriction as strapless_bottom or c-string would have in definition. It only seems to cover if there appears to be an armor/metal plate covering the crotch, but is not restricted in the type of underwear or garment it is attached to, thus can include forms that have straps or are pants.

I don't really think c-string should implicate bikini_bottom or thong_bikini, as I'm not sure users would actually expect to find images of c-strings mixed in.

Between c-string and strapless_bottom, strapless bottom would be the more general tag. In terms of usage though the two have been somewhat separated based on general shape, with c-string depictions tending to be narrower (post #2344992), and strapless bottom depictions tending to fan out (post #1032750). Strapless bottom depictions can include things like post #1367207 as well.