BUR #3424 has been approved by @evazion.
create implication breast_focus -> breasts
Should be self-explanatory. Was suggested in forum #114847, but it seems like it was overlooked in the discussion and never formally proposed. Plus, Ass focus already implicates ass.
EDIT: The bulk update request #3424 (forum #172493) has been approved by @evazion.
Updated by DanbooruBot