ofrelated

ofrelated is a proposed relational predicate used in knowledge representation to mark a specific form of inter-entity relation that derives from the broader category of related relations. The term is a portmanteau of 'of' and 'related' and is used in ontologies to denote a contextual or domain-specific association between two items.

In formal graph notation, a statement is expressed as subject --ofrelated--> object, optionally annotated with qualifiers such as type, strength, and context. Type indicates the subcategory of the relation (for example, thematic_similarity, cooccurrence, or shared_attribute). Strength is a numeric weight; context provides domain information such as dataset, time period, or domain-specific taxonomy.

Usage and rationale: ofrelated is intended to supplement generic related predicates like related_to or similar_to by providing finer granularity. It is useful in metadata schemas for digital libraries, knowledge graphs, and data integration where explicit differentiation of relatedness improves search, ranking, or clustering.

Examples: In a literature graph, "1984" --ofrelated--> "Dystopian Genre" with type='genre_group' could indicate a thematic grouping rather than a direct author relationship. In a bibliographic graph, "Book A" --ofrelated--> "Book B" with type='shared_theme'.

Limitations and considerations: Because ofrelated is not a widely standardized predicate, its interpretation depends on ontology design; inconsistent use can hamper interoperability. It requires clear definitions of allowed types and provenance.

See also: related_to, similar_to, and ontology alignment.