Implicating on_sofa → sofa
Link to implication

Reason:

Just as on_bed implies bed.

EDIT: The tag implication on_sofa -> sofa (forum #284212) has been approved by @Millcore.

+1, I had also added this to a big alias/implication list regarding furniture: forum #273696

Bumping this up together with topic #25156...was about to suggest.

Since this implication and the other topic haven't been reviewed yet, I'll make a BUR for various furniture aliases/implications.

The tag implication on_sofa -> sofa (forum #284212) has been approved by @Millcore.