clarify/codify reading direction more closely

[increpare]

Many symbols when used as verbs have two senses depending on direction - "A hurts B" or "B pleasures A" say. However, right now I don't have clear rules on which should take precedence if part is missing "A hurts" vs "A is pleasured" - I just pick one arbitrarily, even though geometrically it'd be better to be able to use both.

What I need to do is establish clearer guidelines on reading direction.