SIMILAR_TO - Discussion

The set of subtypes of 900000000000522004 Historical association reference set (foundation metadata concept) includes:

...which implies the existence of a further flavour of historical association semantics, in addition to SAME_AS, REPLACED_BY, POSSIBLY_EQUIVALENT_TO, WAS_A, MOVED_TO/FROM, ALTERNATIVE and REFERS_TO

At the time of writing (July 2020) there are however no instances of this association within the International Edition.

Therefore no further description is provided here in relation to its intended semantics and use.