Here wants From because There needs to. here will get From unless From is fixed on There, this will cause to to find the Direction.
Specify wants mood because generalize needs modality. specify will get mood unless mood is fixed on generalize, this will cause modality to find the z-topic.

A Direction is here and sometimes There.
A z-topic is specify and sometimes generalize.

q1r wants q1s because q1e needs q1o. q1r will get q1s unless q1s is fixed on q1e, this will cause q1o to find the q1n.
q1r wants q1s because q1e needs q1o. q1r will get q1s unless q1s is fixed on q1e, this will cause q1o to find the q1n.

A q1n is q1r and sometimes q1e.
A q1n is q1r and sometimes q1e.