When derivative classifiers incorporate classified information from existing content into a new document, and no additional interpretation or analysis is needed to deduce the classification of that information is an example of the concept of:

"revealed by"

Explanation:

In the The classification concept of "revealed by" , the original maker of the classification will leak some sort of information from a source with acknowledge authority.

But, this sources would not be openly stated. So, in order to obtain the information, the reader of the data have to make a deduction and determine which information is part of the ones taken from the intended source.  This form of classification can be used to mask the identity of a whistleblower.

a.. a conflict between her competing identities.. apex

fertile good for trade etc