# `<subjectRel>`

The `<subjectRel>` element contains a set of subjects that are related in some manner. Each group of subjects is contained in a `<subjectRole>` element; the associations between different columns in the same row are evaluated in the same way as those in a `<relrow>` (from which `<subjectRel>` is specialized) but define relationships between the subjects instead of links between topic documents.

Category: Subject scheme elements