. All type 1 (shape-dominant) knowledge resources have direct entailment from
the key. All get us an answer straight away because at some stage a value has
been recorded against an instance.
. All type 2 (granular-dominant) knowledge resources have articulated entailment
from key. All give us an answer at one remove because it is co-extensive values
that are returned, and the responding system must then retrieve or construct
matching instances to make those values intelligible.
. All type 3 (scope-dominant) knowledge resources have mediated entailment from
the key. All give us an answer by starting with values or instances and locate
connections of significance to the enquirer, applying reasons to determine
membership of the answer set.