When explaining remember-forget, it may be that, source and remember are actually a single factor that contain the mutiple factors of target and forget.
When explaining sensibility, it may be that, function and stimulant are actually a single factor that contain the mutiple factors of structure and reference.

A remember-forget is both a target and a source.
A sensibility is both a structure and a function.

When explaining q1n, it may be that, q1s and q1e are actually a single factor that contain the mutiple factors of q1o and q1r.
When explaining q1n, it may be that, q1s and q1e are actually a single factor that contain the mutiple factors of q1o and q1r.

A q1n is both a q1o and a q1s.
A q1n is both a q1o and a q1s.