Removing min cardinality of zero restriction on ProductUnit. Fixes #582. (#621)

* Removing min cardinality of zero restriction on ProductUnit, added scopeNote to use SHACL if needed.

* Revised scope note of ProductUnit.

* Updated release notes.

* Removed 'non-zero' in scope note because the scope note should hint at a value irrespective of what that value is.

* Matched formatting for issue 582 patch update note.

Co-authored-by: Jessica Singer <jessica@onthecurb.io>

Author: JessSing

docs/ReleaseNotes.md

@@ -16,6 +16,7 @@ Release X.x.x
 - Added labels to gist instances, per issue [#370](https://github.com/semanticarts/gist/issues/370).
 - Added definitions for unit of measure instances per issue [#526](https://github.com/semanticarts/gist/issues/526).
 - Deprecated property `gist:hasOrderedMember`. `gist:hasMember` should be used instead. Issue [#540](https://github.com/semanticarts/gist/issues/540).
+- Removed min cardinality of zero restriction on `ProductUnit`, per issue [#582](https://github.com/semanticarts/gist/issues/582).
 
 Import URL: <https://ontologies.semanticarts.com/o/gistCoreX.x.x>.
 

gistCore.ttl

@@ -2055,17 +2055,12 @@ gist:ProductUnit
 				owl:onProperty gist:hasMultiplier ;
 				owl:someValuesFrom gist:UnitOfMeasure ;
 			]
-			[
-				a owl:Restriction ;
-				owl:onProperty gist:baseConversionFactor ;
-				owl:minQualifiedCardinality "0"^^xsd:nonNegativeInteger ;
-				owl:onDataRange xsd:double ;
-			]
 		) ;
 	] ;
 	skos:definition "A unit of measure that is the product of two simpler ones."^^xsd:string ;
 	skos:example "Area and Volume are the classic cases.  But other, more exotic cases exist, such as Newtons."^^xsd:string ;
 	skos:prefLabel "Product Unit"^^xsd:string ;
+	skos:scopeNote "A ProductUnit is intended have a value for baseConversionFactor."^^xsd:string ;
 	.
 
 gist:Project