One row per cybed:UnitRelation node (build_unit_relation_node()),
giving the related pair of organizing units plus the relation's own
framework attribution. relation is NA for a plain (unlabeled)
relation; framework_slug is NA when the relation node carries no
cybed:partOf, or one whose target is not typed cybed:Framework.
Examples
if (FALSE) { # \dontrun{
rdf <- load_combined_ntriples_graph()
unit_relation_bindings(rdf)
} # }
