وَجَدَ الْأَمِينُ ضَرَرًا فِي الْأَوْرَاقِ؛ تَلِفَ بَعْضُهَا دُونَ بَعْضٍ.
The custodian found damage among the leaves; some were damaged and others were not.
The initial report identifies damage generally, while the second clause makes its extent clearer. In a context where the listener expects elaboration, this can exemplify clarification after initial indeterminacy.
Not every subsequent detail is automatically superfluous amplification. If the exact extent is necessary for the decision at hand, the additional statement may be essential information. Rhetorical classification must consider what the audience needs.