Implicating <3_panties &rarr; panties
Link to implication

Reason:

If the images has panties with a heart symbol, it also has panties.

EDIT: The tag implication <3_panties -> panties (forum #282185) has been rejected by @Rainbow_Dash.

+1. Also <3_panties → <3.

If that were approved, then also also <3_panties -> heart_pattern

Additionally, it seems like <3_sign is the same thing as hand_heart. It'd be nice to have a convention for handling tags like that, which don't have enough taggings to justify an alias, but otherwise *would* be aliased.
Personally, editing the wiki to say 'use CANONICAL_TAG instead' seems reasonable.

(I fixed the 4 instances of <3_sign, so there are currently none)

Alias to heart_panties first.

Hijacking this thread.

Alias:
<3_panties -> heart_panties

Implications:
heart_panties -> <3
heart_panties -> heart_pattern

Alias:
<3_pillow -> heart_pillow

Implications:
heart_pillow -> <3
Can't implicate heart_pattern, because tag refers to the shape of the pillow rather than the pattern on it.

The tag implication <3_panties -> panties (forum #282185) has been rejected by @Rainbow_Dash.